Finding the Fourth Proportional to 23,086.88, 31,859.90 and 13,150.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,086.88 : 31,859.90 = 13,150.88 : x
2. Step 2: Convert to fraction form
   23,086.88/31,859.90 = 13,150.88/x
3. Step 3: Cross multiply
   23,086.88x = 31,859.90 × 13,150.88
4. Step 4: Simplify right side
   23,086.88x = 418,985,496.66
5. Step 5: Solve for x
   x = 418,985,496.66/23,086.88
6. Step 6: Final answer
   x = 18,148.21