Finding the Fourth Proportional to 209,123.34, 288,591.96 and 113,630.04

Step by Step Solution

1. Step 1: Write the proportion equation
   209,123.34 : 288,591.96 = 113,630.04 : x
2. Step 2: Convert to fraction form
   209,123.34/288,591.96 = 113,630.04/x
3. Step 3: Cross multiply
   209,123.34x = 288,591.96 × 113,630.04
4. Step 4: Simplify right side
   209,123.34x = 32,792,716,384.59
5. Step 5: Solve for x
   x = 32,792,716,384.59/209,123.34
6. Step 6: Final answer
   x = 156,810.41