Finding the Fourth Proportional to 12,393.51, 17,086.17 and 8,850.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,393.51 : 17,086.17 = 8,850.57 : x
2. Step 2: Convert to fraction form
   12,393.51/17,086.17 = 8,850.57/x
3. Step 3: Cross multiply
   12,393.51x = 17,086.17 × 8,850.57
4. Step 4: Simplify right side
   12,393.51x = 151,222,343.62
5. Step 5: Solve for x
   x = 151,222,343.62/12,393.51
6. Step 6: Final answer
   x = 12,201.74