Finding the Fourth Proportional to 9,540.87, 13,166.36 and 5,349.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,540.87 : 13,166.36 = 5,349.12 : x
2. Step 2: Convert to fraction form
   9,540.87/13,166.36 = 5,349.12/x
3. Step 3: Cross multiply
   9,540.87x = 13,166.36 × 5,349.12
4. Step 4: Simplify right side
   9,540.87x = 70,428,412.86
5. Step 5: Solve for x
   x = 70,428,412.86/9,540.87
6. Step 6: Final answer
   x = 7,381.76