Finding the Fourth Proportional to 22,702.52, 31,328.88 and 12,630.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,702.52 : 31,328.88 = 12,630.98 : x
2. Step 2: Convert to fraction form
   22,702.52/31,328.88 = 12,630.98/x
3. Step 3: Cross multiply
   22,702.52x = 31,328.88 × 12,630.98
4. Step 4: Simplify right side
   22,702.52x = 395,714,456.70
5. Step 5: Solve for x
   x = 395,714,456.70/22,702.52
6. Step 6: Final answer
   x = 17,430.42