Finding the Fourth Proportional to 22,669.72, 31,285 and 12,598.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,669.72 : 31,285 = 12,598.59 : x
2. Step 2: Convert to fraction form
   22,669.72/31,285 = 12,598.59/x
3. Step 3: Cross multiply
   22,669.72x = 31,285 × 12,598.59
4. Step 4: Simplify right side
   22,669.72x = 394,146,731.73
5. Step 5: Solve for x
   x = 394,146,731.73/22,669.72
6. Step 6: Final answer
   x = 17,386.48