Finding the Fourth Proportional to 15,569.24, 21,485.82 and 8,495.72

Step by Step Solution

1. Step 1: Write the proportion equation
   15,569.24 : 21,485.82 = 8,495.72 : x
2. Step 2: Convert to fraction form
   15,569.24/21,485.82 = 8,495.72/x
3. Step 3: Cross multiply
   15,569.24x = 21,485.82 × 8,495.72
4. Step 4: Simplify right side
   15,569.24x = 182,537,510.69
5. Step 5: Solve for x
   x = 182,537,510.69/15,569.24
6. Step 6: Final answer
   x = 11,724.24