Finding the Fourth Proportional to 9,280.12, 12,806.82 and 5,301.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.12 : 12,806.82 = 5,301.88 : x
2. Step 2: Convert to fraction form
   9,280.12/12,806.82 = 5,301.88/x
3. Step 3: Cross multiply
   9,280.12x = 12,806.82 × 5,301.88
4. Step 4: Simplify right side
   9,280.12x = 67,900,222.82
5. Step 5: Solve for x
   x = 67,900,222.82/9,280.12
6. Step 6: Final answer
   x = 7,316.74