Finding the Fourth Proportional to 147,499.42, 221,081.83 and 129,695.71

Step by Step Solution

1. Step 1: Write the proportion equation
   147,499.42 : 221,081.83 = 129,695.71 : x
2. Step 2: Convert to fraction form
   147,499.42/221,081.83 = 129,695.71/x
3. Step 3: Cross multiply
   147,499.42x = 221,081.83 × 129,695.71
4. Step 4: Simplify right side
   147,499.42x = 28,673,364,909.95
5. Step 5: Solve for x
   x = 28,673,364,909.95/147,499.42
6. Step 6: Final answer
   x = 194,396.46