Finding the Fourth Proportional to 5,819.12, 8,724.32 and 3,510.08

Step by Step Solution

1. Step 1: Write the proportion equation
   5,819.12 : 8,724.32 = 3,510.08 : x
2. Step 2: Convert to fraction form
   5,819.12/8,724.32 = 3,510.08/x
3. Step 3: Cross multiply
   5,819.12x = 8,724.32 × 3,510.08
4. Step 4: Simplify right side
   5,819.12x = 30,623,061.15
5. Step 5: Solve for x
   x = 30,623,061.15/5,819.12
6. Step 6: Final answer
   x = 5,262.49