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Finding the Fourth Proportional to 123,199.79, 184,422.42 and 78,869.30

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Solution

The fourth proportional to 123,199.79, 184,422.42 and 78,869.30 is: 118,062.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,199.79 : 184,422.42 = 78,869.30 : x
  2. Step 2: Convert to fraction form
    123,199.79/184,422.42 = 78,869.30/x
  3. Step 3: Cross multiply
    123,199.79x = 184,422.42 × 78,869.30
  4. Step 4: Simplify right side
    123,199.79x = 14,545,266,247.59
  5. Step 5: Solve for x
    x = 14,545,266,247.59/123,199.79
  6. Step 6: Final answer
    x = 118,062.43

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