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Finding the Fourth Proportional to 210,891.02, 316,340.18 and 77,702.72

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Solution

The fourth proportional to 210,891.02, 316,340.18 and 77,702.72 is: 116,555.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,891.02 : 316,340.18 = 77,702.72 : x
  2. Step 2: Convert to fraction form
    210,891.02/316,340.18 = 77,702.72/x
  3. Step 3: Cross multiply
    210,891.02x = 316,340.18 × 77,702.72
  4. Step 4: Simplify right side
    210,891.02x = 24,580,492,431.29
  5. Step 5: Solve for x
    x = 24,580,492,431.29/210,891.02
  6. Step 6: Final answer
    x = 116,555.42

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