Finding the Fourth Proportional to 22,570.92, 31,147.32 and 12,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,570.92 : 31,147.32 = 12,498.72 : x
2. Step 2: Convert to fraction form
   22,570.92/31,147.32 = 12,498.72/x
3. Step 3: Cross multiply
   22,570.92x = 31,147.32 × 12,498.72
4. Step 4: Simplify right side
   22,570.92x = 389,301,631.43
5. Step 5: Solve for x
   x = 389,301,631.43/22,570.92
6. Step 6: Final answer
   x = 17,247.93