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Finding the Fourth Proportional to 116,421.53, 174,507.95 and 66,393.90

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Solution

The fourth proportional to 116,421.53, 174,507.95 and 66,393.90 is: 99,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,421.53 : 174,507.95 = 66,393.90 : x
  2. Step 2: Convert to fraction form
    116,421.53/174,507.95 = 66,393.90/x
  3. Step 3: Cross multiply
    116,421.53x = 174,507.95 × 66,393.90
  4. Step 4: Simplify right side
    116,421.53x = 11,586,263,049.54
  5. Step 5: Solve for x
    x = 11,586,263,049.54/116,421.53
  6. Step 6: Final answer
    x = 99,519.94

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