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Finding the Fourth Proportional to 105,097.86, 145,038.11 and 57,354.28

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Solution

The fourth proportional to 105,097.86, 145,038.11 and 57,354.28 is: 79,150.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,097.86 : 145,038.11 = 57,354.28 : x
  2. Step 2: Convert to fraction form
    105,097.86/145,038.11 = 57,354.28/x
  3. Step 3: Cross multiply
    105,097.86x = 145,038.11 × 57,354.28
  4. Step 4: Simplify right side
    105,097.86x = 8,318,555,722.24
  5. Step 5: Solve for x
    x = 8,318,555,722.24/105,097.86
  6. Step 6: Final answer
    x = 79,150.57

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