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Finding the Fourth Proportional to 104,666.86, 144,438.90 and 56,919.18

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Solution

The fourth proportional to 104,666.86, 144,438.90 and 56,919.18 is: 78,547.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,666.86 : 144,438.90 = 56,919.18 : x
  2. Step 2: Convert to fraction form
    104,666.86/144,438.90 = 56,919.18/x
  3. Step 3: Cross multiply
    104,666.86x = 144,438.90 × 56,919.18
  4. Step 4: Simplify right side
    104,666.86x = 8,221,343,748.10
  5. Step 5: Solve for x
    x = 8,221,343,748.10/104,666.86
  6. Step 6: Final answer
    x = 78,547.73

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