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Finding the Fourth Proportional to 17,533.78, 26,300.70 and 5,221.78

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Solution

The fourth proportional to 17,533.78, 26,300.70 and 5,221.78 is: 7,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,533.78 : 26,300.70 = 5,221.78 : x
  2. Step 2: Convert to fraction form
    17,533.78/26,300.70 = 5,221.78/x
  3. Step 3: Cross multiply
    17,533.78x = 26,300.70 × 5,221.78
  4. Step 4: Simplify right side
    17,533.78x = 137,336,469.25
  5. Step 5: Solve for x
    x = 137,336,469.25/17,533.78
  6. Step 6: Final answer
    x = 7,832.68

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