Finding the Fourth Proportional to 22,777.88, 31,433.72 and 12,706.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,777.88 : 31,433.72 = 12,706.24 : x
2. Step 2: Convert to fraction form
   22,777.88/31,433.72 = 12,706.24/x
3. Step 3: Cross multiply
   22,777.88x = 31,433.72 × 12,706.24
4. Step 4: Simplify right side
   22,777.88x = 399,404,390.41
5. Step 5: Solve for x
   x = 399,404,390.41/22,777.88
6. Step 6: Final answer
   x = 17,534.75