Finding the Fourth Proportional to 21,613.56, 32,434.92 and 8,464.29

Step by Step Solution

1. Step 1: Write the proportion equation
   21,613.56 : 32,434.92 = 8,464.29 : x
2. Step 2: Convert to fraction form
   21,613.56/32,434.92 = 8,464.29/x
3. Step 3: Cross multiply
   21,613.56x = 32,434.92 × 8,464.29
4. Step 4: Simplify right side
   21,613.56x = 274,538,569.01
5. Step 5: Solve for x
   x = 274,538,569.01/21,613.56
6. Step 6: Final answer
   x = 12,702.14