Finding the Fourth Proportional to 9,280.12, 12,807.12 and 5,695.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.12 : 12,807.12 = 5,695.48 : x
2. Step 2: Convert to fraction form
   9,280.12/12,807.12 = 5,695.48/x
3. Step 3: Cross multiply
   9,280.12x = 12,807.12 × 5,695.48
4. Step 4: Simplify right side
   9,280.12x = 72,942,695.82
5. Step 5: Solve for x
   x = 72,942,695.82/9,280.12
6. Step 6: Final answer
   x = 7,860.10