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Finding the Fourth Proportional to 99,465.60, 137,264.27 and 54,144.88

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Solution

The fourth proportional to 99,465.60, 137,264.27 and 54,144.88 is: 74,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,465.60 : 137,264.27 = 54,144.88 : x
  2. Step 2: Convert to fraction form
    99,465.60/137,264.27 = 54,144.88/x
  3. Step 3: Cross multiply
    99,465.60x = 137,264.27 × 54,144.88
  4. Step 4: Simplify right side
    99,465.60x = 7,432,157,427.44
  5. Step 5: Solve for x
    x = 7,432,157,427.44/99,465.60
  6. Step 6: Final answer
    x = 74,720.88

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