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Finding the Fourth Proportional to 105,461.70, 145,536.90 and 57,715.02

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Solution

The fourth proportional to 105,461.70, 145,536.90 and 57,715.02 is: 79,646.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.70 : 145,536.90 = 57,715.02 : x
  2. Step 2: Convert to fraction form
    105,461.70/145,536.90 = 57,715.02/x
  3. Step 3: Cross multiply
    105,461.70x = 145,536.90 × 57,715.02
  4. Step 4: Simplify right side
    105,461.70x = 8,399,665,094.24
  5. Step 5: Solve for x
    x = 8,399,665,094.24/105,461.70
  6. Step 6: Final answer
    x = 79,646.59

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