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Finding the Fourth Proportional to 98,790.72, 136,330.14 and 53,467.76

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Solution

The fourth proportional to 98,790.72, 136,330.14 and 53,467.76 is: 73,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,790.72 : 136,330.14 = 53,467.76 : x
  2. Step 2: Convert to fraction form
    98,790.72/136,330.14 = 53,467.76/x
  3. Step 3: Cross multiply
    98,790.72x = 136,330.14 × 53,467.76
  4. Step 4: Simplify right side
    98,790.72x = 7,289,267,206.29
  5. Step 5: Solve for x
    x = 7,289,267,206.29/98,790.72
  6. Step 6: Final answer
    x = 73,784.94

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