Finding the Fourth Proportional to 22,773.89, 31,428.14 and 12,702.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,773.89 : 31,428.14 = 12,702.98 : x
2. Step 2: Convert to fraction form
   22,773.89/31,428.14 = 12,702.98/x
3. Step 3: Cross multiply
   22,773.89x = 31,428.14 × 12,702.98
4. Step 4: Simplify right side
   22,773.89x = 399,231,033.86
5. Step 5: Solve for x
   x = 399,231,033.86/22,773.89
6. Step 6: Final answer
   x = 17,530.21