Finding the Fourth Proportional to 147,498.42, 221,080.33 and 129,694.71

Step by Step Solution

1. Step 1: Write the proportion equation
   147,498.42 : 221,080.33 = 129,694.71 : x
2. Step 2: Convert to fraction form
   147,498.42/221,080.33 = 129,694.71/x
3. Step 3: Cross multiply
   147,498.42x = 221,080.33 × 129,694.71
4. Step 4: Simplify right side
   147,498.42x = 28,672,949,286.05
5. Step 5: Solve for x
   x = 28,672,949,286.05/147,498.42
6. Step 6: Final answer
   x = 194,394.96