Finding the Fourth Proportional to 5,280.64, 7,922.76 and 3,532.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,280.64 : 7,922.76 = 3,532.72 : x
2. Step 2: Convert to fraction form
   5,280.64/7,922.76 = 3,532.72/x
3. Step 3: Cross multiply
   5,280.64x = 7,922.76 × 3,532.72
4. Step 4: Simplify right side
   5,280.64x = 27,988,892.71
5. Step 5: Solve for x
   x = 27,988,892.71/5,280.64
6. Step 6: Final answer
   x = 5,300.28