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Finding the Fourth Proportional to 109,336.64, 164,009.28 and 30,457.76

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Solution

The fourth proportional to 109,336.64, 164,009.28 and 30,457.76 is: 45,687.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,336.64 : 164,009.28 = 30,457.76 : x
  2. Step 2: Convert to fraction form
    109,336.64/164,009.28 = 30,457.76/x
  3. Step 3: Cross multiply
    109,336.64x = 164,009.28 × 30,457.76
  4. Step 4: Simplify right side
    109,336.64x = 4,995,355,288.01
  5. Step 5: Solve for x
    x = 4,995,355,288.01/109,336.64
  6. Step 6: Final answer
    x = 45,687.84

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