Finding the Fourth Proportional to 12,388.05, 17,103.29 and 8,862.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,388.05 : 17,103.29 = 8,862.93 : x
2. Step 2: Convert to fraction form
   12,388.05/17,103.29 = 8,862.93/x
3. Step 3: Cross multiply
   12,388.05x = 17,103.29 × 8,862.93
4. Step 4: Simplify right side
   12,388.05x = 151,585,217.73
5. Step 5: Solve for x
   x = 151,585,217.73/12,388.05
6. Step 6: Final answer
   x = 12,236.41