Finding the Fourth Proportional to 22,557.83, 31,132.13 and 12,998.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,557.83 : 31,132.13 = 12,998.08 : x
2. Step 2: Convert to fraction form
   22,557.83/31,132.13 = 12,998.08/x
3. Step 3: Cross multiply
   22,557.83x = 31,132.13 × 12,998.08
4. Step 4: Simplify right side
   22,557.83x = 404,657,773.49
5. Step 5: Solve for x
   x = 404,657,773.49/22,557.83
6. Step 6: Final answer
   x = 17,938.68