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Finding the Fourth Proportional to 51,578.52, 77,371.91 and 21,996.63

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Solution

The fourth proportional to 51,578.52, 77,371.91 and 21,996.63 is: 32,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,578.52 : 77,371.91 = 21,996.63 : x
  2. Step 2: Convert to fraction form
    51,578.52/77,371.91 = 21,996.63/x
  3. Step 3: Cross multiply
    51,578.52x = 77,371.91 × 21,996.63
  4. Step 4: Simplify right side
    51,578.52x = 1,701,921,166.68
  5. Step 5: Solve for x
    x = 1,701,921,166.68/51,578.52
  6. Step 6: Final answer
    x = 32,996.70

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