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Finding the Fourth Proportional to 82,126.66, 123,189.90 and 19,797.16

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Solution

The fourth proportional to 82,126.66, 123,189.90 and 19,797.16 is: 29,695.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,126.66 : 123,189.90 = 19,797.16 : x
  2. Step 2: Convert to fraction form
    82,126.66/123,189.90 = 19,797.16/x
  3. Step 3: Cross multiply
    82,126.66x = 123,189.90 × 19,797.16
  4. Step 4: Simplify right side
    82,126.66x = 2,438,810,160.68
  5. Step 5: Solve for x
    x = 2,438,810,160.68/82,126.66
  6. Step 6: Final answer
    x = 29,695.72

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