Finding the Fourth Proportional to 22,569.77, 31,145.89 and 12,497.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,569.77 : 31,145.89 = 12,497.99 : x
2. Step 2: Convert to fraction form
   22,569.77/31,145.89 = 12,497.99/x
3. Step 3: Cross multiply
   22,569.77x = 31,145.89 × 12,497.99
4. Step 4: Simplify right side
   22,569.77x = 389,260,803.54
5. Step 5: Solve for x
   x = 389,260,803.54/22,569.77
6. Step 6: Final answer
   x = 17,247.00