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Finding the Fourth Proportional to 8,672.63, 11,968.25 and 4,693.78

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Solution

The fourth proportional to 8,672.63, 11,968.25 and 4,693.78 is: 6,477.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.63 : 11,968.25 = 4,693.78 : x
  2. Step 2: Convert to fraction form
    8,672.63/11,968.25 = 4,693.78/x
  3. Step 3: Cross multiply
    8,672.63x = 11,968.25 × 4,693.78
  4. Step 4: Simplify right side
    8,672.63x = 56,176,332.49
  5. Step 5: Solve for x
    x = 56,176,332.49/8,672.63
  6. Step 6: Final answer
    x = 6,477.43

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