Finding the Fourth Proportional to 16,787.40, 25,175.72 and 5,540.22

Step by Step Solution

1. Step 1: Write the proportion equation
   16,787.40 : 25,175.72 = 5,540.22 : x
2. Step 2: Convert to fraction form
   16,787.40/25,175.72 = 5,540.22/x
3. Step 3: Cross multiply
   16,787.40x = 25,175.72 × 5,540.22
4. Step 4: Simplify right side
   16,787.40x = 139,478,999.76
5. Step 5: Solve for x
   x = 139,478,999.76/16,787.40
6. Step 6: Final answer
   x = 8,308.55