Finding the Fourth Proportional to 12,854.64, 17,740.32 and 8,073.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,854.64 : 17,740.32 = 8,073.30 : x
2. Step 2: Convert to fraction form
   12,854.64/17,740.32 = 8,073.30/x
3. Step 3: Cross multiply
   12,854.64x = 17,740.32 × 8,073.30
4. Step 4: Simplify right side
   12,854.64x = 143,222,925.46
5. Step 5: Solve for x
   x = 143,222,925.46/12,854.64
6. Step 6: Final answer
   x = 11,141.73