Finding the Fourth Proportional to 9,482.72, 13,086.72 and 5,290.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,482.72 : 13,086.72 = 5,290.88 : x
2. Step 2: Convert to fraction form
   9,482.72/13,086.72 = 5,290.88/x
3. Step 3: Cross multiply
   9,482.72x = 13,086.72 × 5,290.88
4. Step 4: Simplify right side
   9,482.72x = 69,240,265.11
5. Step 5: Solve for x
   x = 69,240,265.11/9,482.72
6. Step 6: Final answer
   x = 7,301.73