Finding the Fourth Proportional to 209,084.29, 288,535.56 and 113,590.15

Step by Step Solution

1. Step 1: Write the proportion equation
   209,084.29 : 288,535.56 = 113,590.15 : x
2. Step 2: Convert to fraction form
   209,084.29/288,535.56 = 113,590.15/x
3. Step 3: Cross multiply
   209,084.29x = 288,535.56 × 113,590.15
4. Step 4: Simplify right side
   209,084.29x = 32,774,797,540.73
5. Step 5: Solve for x
   x = 32,774,797,540.73/209,084.29
6. Step 6: Final answer
   x = 156,753.99