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Finding the Fourth Proportional to 77,453.61, 116,171.17 and 21,299.42

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Solution

The fourth proportional to 77,453.61, 116,171.17 and 21,299.42 is: 31,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,453.61 : 116,171.17 = 21,299.42 : x
  2. Step 2: Convert to fraction form
    77,453.61/116,171.17 = 21,299.42/x
  3. Step 3: Cross multiply
    77,453.61x = 116,171.17 × 21,299.42
  4. Step 4: Simplify right side
    77,453.61x = 2,474,378,541.72
  5. Step 5: Solve for x
    x = 2,474,378,541.72/77,453.61
  6. Step 6: Final answer
    x = 31,946.59

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