Finding the Fourth Proportional to 22,506.78, 33,760.16 and 7,715.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,506.78 : 33,760.16 = 7,715.82 : x
2. Step 2: Convert to fraction form
   22,506.78/33,760.16 = 7,715.82/x
3. Step 3: Cross multiply
   22,506.78x = 33,760.16 × 7,715.82
4. Step 4: Simplify right side
   22,506.78x = 260,487,279.15
5. Step 5: Solve for x
   x = 260,487,279.15/22,506.78
6. Step 6: Final answer
   x = 11,573.72