Finding the Fourth Proportional to 17,639.34, 26,476.29 and 8,411.82

Step by Step Solution

1. Step 1: Write the proportion equation
   17,639.34 : 26,476.29 = 8,411.82 : x
2. Step 2: Convert to fraction form
   17,639.34/26,476.29 = 8,411.82/x
3. Step 3: Cross multiply
   17,639.34x = 26,476.29 × 8,411.82
4. Step 4: Simplify right side
   17,639.34x = 222,713,785.75
5. Step 5: Solve for x
   x = 222,713,785.75/17,639.34
6. Step 6: Final answer
   x = 12,625.97