Finding the Fourth Proportional to 22,871.36, 31,561.35 and 12,799.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,871.36 : 31,561.35 = 12,799.82 : x
2. Step 2: Convert to fraction form
   22,871.36/31,561.35 = 12,799.82/x
3. Step 3: Cross multiply
   22,871.36x = 31,561.35 × 12,799.82
4. Step 4: Simplify right side
   22,871.36x = 403,979,629.86
5. Step 5: Solve for x
   x = 403,979,629.86/22,871.36
6. Step 6: Final answer
   x = 17,663.12