Finding the Fourth Proportional to 209,091.38, 288,535.30 and 113,595.62

Step by Step Solution

1. Step 1: Write the proportion equation
   209,091.38 : 288,535.30 = 113,595.62 : x
2. Step 2: Convert to fraction form
   209,091.38/288,535.30 = 113,595.62/x
3. Step 3: Cross multiply
   209,091.38x = 288,535.30 × 113,595.62
4. Step 4: Simplify right side
   209,091.38x = 32,776,344,568.72
5. Step 5: Solve for x
   x = 32,776,344,568.72/209,091.38
6. Step 6: Final answer
   x = 156,756.08