Finding the Fourth Proportional to 12,155.40, 16,773.89 and 8,175.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,155.40 : 16,773.89 = 8,175.87 : x
2. Step 2: Convert to fraction form
   12,155.40/16,773.89 = 8,175.87/x
3. Step 3: Cross multiply
   12,155.40x = 16,773.89 × 8,175.87
4. Step 4: Simplify right side
   12,155.40x = 137,141,103.15
5. Step 5: Solve for x
   x = 137,141,103.15/12,155.40
6. Step 6: Final answer
   x = 11,282.32