Finding the Fourth Proportional to 7,482.98, 10,320.81 and 5,720.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,482.98 : 10,320.81 = 5,720.42 : x
2. Step 2: Convert to fraction form
   7,482.98/10,320.81 = 5,720.42/x
3. Step 3: Cross multiply
   7,482.98x = 10,320.81 × 5,720.42
4. Step 4: Simplify right side
   7,482.98x = 59,039,367.94
5. Step 5: Solve for x
   x = 59,039,367.94/7,482.98
6. Step 6: Final answer
   x = 7,889.82