Finding the Fourth Proportional to 22,581.57, 33,887.91 and 7,790.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,581.57 : 33,887.91 = 7,790.50 : x
2. Step 2: Convert to fraction form
   22,581.57/33,887.91 = 7,790.50/x
3. Step 3: Cross multiply
   22,581.57x = 33,887.91 × 7,790.50
4. Step 4: Simplify right side
   22,581.57x = 264,003,874.96
5. Step 5: Solve for x
   x = 264,003,874.96/22,581.57
6. Step 6: Final answer
   x = 11,691.12