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Finding the Fourth Proportional to 99,618.17, 137,463.44 and 57,168.50

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Solution

The fourth proportional to 99,618.17, 137,463.44 and 57,168.50 is: 78,887.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.17 : 137,463.44 = 57,168.50 : x
  2. Step 2: Convert to fraction form
    99,618.17/137,463.44 = 57,168.50/x
  3. Step 3: Cross multiply
    99,618.17x = 137,463.44 × 57,168.50
  4. Step 4: Simplify right side
    99,618.17x = 7,858,577,696.48
  5. Step 5: Solve for x
    x = 7,858,577,696.48/99,618.17
  6. Step 6: Final answer
    x = 78,887.00

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