Finding the Fourth Proportional to 9,280.46, 12,807.18 and 5,031.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.46 : 12,807.18 = 5,031.60 : x
2. Step 2: Convert to fraction form
   9,280.46/12,807.18 = 5,031.60/x
3. Step 3: Cross multiply
   9,280.46x = 12,807.18 × 5,031.60
4. Step 4: Simplify right side
   9,280.46x = 64,440,606.89
5. Step 5: Solve for x
   x = 64,440,606.89/9,280.46
6. Step 6: Final answer
   x = 6,943.69