Finding the Fourth Proportional to 17,566.72, 26,354.40 and 12,382.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,566.72 : 26,354.40 = 12,382.72 : x
2. Step 2: Convert to fraction form
   17,566.72/26,354.40 = 12,382.72/x
3. Step 3: Cross multiply
   17,566.72x = 26,354.40 × 12,382.72
4. Step 4: Simplify right side
   17,566.72x = 326,339,155.97
5. Step 5: Solve for x
   x = 326,339,155.97/17,566.72
6. Step 6: Final answer
   x = 18,577.13