Finding the Fourth Proportional to 22,569.68, 31,147.31 and 12,499.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,569.68 : 31,147.31 = 12,499.25 : x
2. Step 2: Convert to fraction form
   22,569.68/31,147.31 = 12,499.25/x
3. Step 3: Cross multiply
   22,569.68x = 31,147.31 × 12,499.25
4. Step 4: Simplify right side
   22,569.68x = 389,317,890.03
5. Step 5: Solve for x
   x = 389,317,890.03/22,569.68
6. Step 6: Final answer
   x = 17,249.60