Finding the Fourth Proportional to 9,472.26, 13,071.70 and 5,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,472.26 : 13,071.70 = 5,280.50 : x
2. Step 2: Convert to fraction form
   9,472.26/13,071.70 = 5,280.50/x
3. Step 3: Cross multiply
   9,472.26x = 13,071.70 × 5,280.50
4. Step 4: Simplify right side
   9,472.26x = 69,025,111.85
5. Step 5: Solve for x
   x = 69,025,111.85/9,472.26
6. Step 6: Final answer
   x = 7,287.08