Finding the Fourth Proportional to 22,567.68, 31,145.31 and 12,498.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,567.68 : 31,145.31 = 12,498.57 : x
2. Step 2: Convert to fraction form
   22,567.68/31,145.31 = 12,498.57/x
3. Step 3: Cross multiply
   22,567.68x = 31,145.31 × 12,498.57
4. Step 4: Simplify right side
   22,567.68x = 389,271,837.21
5. Step 5: Solve for x
   x = 389,271,837.21/22,567.68
6. Step 6: Final answer
   x = 17,249.09