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Finding the Fourth Proportional to 77,845.73, 116,768.71 and 21,686.00

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Solution

The fourth proportional to 77,845.73, 116,768.71 and 21,686.00 is: 32,529.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,845.73 : 116,768.71 = 21,686.00 : x
  2. Step 2: Convert to fraction form
    77,845.73/116,768.71 = 21,686.00/x
  3. Step 3: Cross multiply
    77,845.73x = 116,768.71 × 21,686.00
  4. Step 4: Simplify right side
    77,845.73x = 2,532,246,734.55
  5. Step 5: Solve for x
    x = 2,532,246,734.55/77,845.73
  6. Step 6: Final answer
    x = 32,529.04

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