Finding the Fourth Proportional to 8,329.56, 11,482.88 and 5,140.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,329.56 : 11,482.88 = 5,140.72 : x
2. Step 2: Convert to fraction form
   8,329.56/11,482.88 = 5,140.72/x
3. Step 3: Cross multiply
   8,329.56x = 11,482.88 × 5,140.72
4. Step 4: Simplify right side
   8,329.56x = 59,030,270.87
5. Step 5: Solve for x
   x = 59,030,270.87/8,329.56
6. Step 6: Final answer
   x = 7,086.84