Finding the Fourth Proportional to 9,200.52, 12,689.46 and 7,759.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,200.52 : 12,689.46 = 7,759.80 : x
2. Step 2: Convert to fraction form
   9,200.52/12,689.46 = 7,759.80/x
3. Step 3: Cross multiply
   9,200.52x = 12,689.46 × 7,759.80
4. Step 4: Simplify right side
   9,200.52x = 98,467,671.71
5. Step 5: Solve for x
   x = 98,467,671.71/9,200.52
6. Step 6: Final answer
   x = 10,702.40