Finding the Fourth Proportional to 9,540.27, 13,165.11 and 5,290.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,540.27 : 13,165.11 = 5,290.98 : x
2. Step 2: Convert to fraction form
   9,540.27/13,165.11 = 5,290.98/x
3. Step 3: Cross multiply
   9,540.27x = 13,165.11 × 5,290.98
4. Step 4: Simplify right side
   9,540.27x = 69,656,333.71
5. Step 5: Solve for x
   x = 69,656,333.71/9,540.27
6. Step 6: Final answer
   x = 7,301.30