Finding the Fourth Proportional to 12,442.92, 17,147.61 and 8,899.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,442.92 : 17,147.61 = 8,899.98 : x
2. Step 2: Convert to fraction form
   12,442.92/17,147.61 = 8,899.98/x
3. Step 3: Cross multiply
   12,442.92x = 17,147.61 × 8,899.98
4. Step 4: Simplify right side
   12,442.92x = 152,613,386.05
5. Step 5: Solve for x
   x = 152,613,386.05/12,442.92
6. Step 6: Final answer
   x = 12,265.08