Finding the Fourth Proportional to 8,354.49, 12,531.61 and 3,358.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,354.49 : 12,531.61 = 3,358.15 : x
2. Step 2: Convert to fraction form
   8,354.49/12,531.61 = 3,358.15/x
3. Step 3: Cross multiply
   8,354.49x = 12,531.61 × 3,358.15
4. Step 4: Simplify right side
   8,354.49x = 42,083,026.12
5. Step 5: Solve for x
   x = 42,083,026.12/8,354.49
6. Step 6: Final answer
   x = 5,037.17