Finding the Fourth Proportional to 9,469.86, 13,066.92 and 5,490.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,469.86 : 13,066.92 = 5,490.15 : x
2. Step 2: Convert to fraction form
   9,469.86/13,066.92 = 5,490.15/x
3. Step 3: Cross multiply
   9,469.86x = 13,066.92 × 5,490.15
4. Step 4: Simplify right side
   9,469.86x = 71,739,350.84
5. Step 5: Solve for x
   x = 71,739,350.84/9,469.86
6. Step 6: Final answer
   x = 7,575.55