Finding the Fourth Proportional to 209,143.52, 288,612.22 and 113,647.04

Step by Step Solution

1. Step 1: Write the proportion equation
   209,143.52 : 288,612.22 = 113,647.04 : x
2. Step 2: Convert to fraction form
   209,143.52/288,612.22 = 113,647.04/x
3. Step 3: Cross multiply
   209,143.52x = 288,612.22 × 113,647.04
4. Step 4: Simplify right side
   209,143.52x = 32,799,924,510.83
5. Step 5: Solve for x
   x = 32,799,924,510.83/209,143.52
6. Step 6: Final answer
   x = 156,829.74