Finding the Fourth Proportional to 7,164.48, 9,891.78 and 5,482.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,164.48 : 9,891.78 = 5,482.86 : x
2. Step 2: Convert to fraction form
   7,164.48/9,891.78 = 5,482.86/x
3. Step 3: Cross multiply
   7,164.48x = 9,891.78 × 5,482.86
4. Step 4: Simplify right side
   7,164.48x = 54,235,244.89
5. Step 5: Solve for x
   x = 54,235,244.89/7,164.48
6. Step 6: Final answer
   x = 7,570.02