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Finding the Fourth Proportional to 86,798.88, 119,785.68 and 49,070.88

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Solution

The fourth proportional to 86,798.88, 119,785.68 and 49,070.88 is: 67,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,798.88 : 119,785.68 = 49,070.88 : x
  2. Step 2: Convert to fraction form
    86,798.88/119,785.68 = 49,070.88/x
  3. Step 3: Cross multiply
    86,798.88x = 119,785.68 × 49,070.88
  4. Step 4: Simplify right side
    86,798.88x = 5,877,988,729.00
  5. Step 5: Solve for x
    x = 5,877,988,729.00/86,798.88
  6. Step 6: Final answer
    x = 67,719.64

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