Finding the Fourth Proportional to 9,772.37, 13,487.67 and 5,580.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,772.37 : 13,487.67 = 5,580.62 : x
2. Step 2: Convert to fraction form
   9,772.37/13,487.67 = 5,580.62/x
3. Step 3: Cross multiply
   9,772.37x = 13,487.67 × 5,580.62
4. Step 4: Simplify right side
   9,772.37x = 75,269,493.52
5. Step 5: Solve for x
   x = 75,269,493.52/9,772.37
6. Step 6: Final answer
   x = 7,702.28