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Finding the Fourth Proportional to 56,269.72, 77,649.66 and 30,774.88

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Solution

The fourth proportional to 56,269.72, 77,649.66 and 30,774.88 is: 42,467.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,269.72 : 77,649.66 = 30,774.88 : x
  2. Step 2: Convert to fraction form
    56,269.72/77,649.66 = 30,774.88/x
  3. Step 3: Cross multiply
    56,269.72x = 77,649.66 × 30,774.88
  4. Step 4: Simplify right side
    56,269.72x = 2,389,658,968.54
  5. Step 5: Solve for x
    x = 2,389,658,968.54/56,269.72
  6. Step 6: Final answer
    x = 42,467.94

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