Finding the Fourth Proportional to 9,349.96, 12,900.18 and 5,571.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,349.96 : 12,900.18 = 5,571.24 : x
2. Step 2: Convert to fraction form
   9,349.96/12,900.18 = 5,571.24/x
3. Step 3: Cross multiply
   9,349.96x = 12,900.18 × 5,571.24
4. Step 4: Simplify right side
   9,349.96x = 71,869,998.82
5. Step 5: Solve for x
   x = 71,869,998.82/9,349.96
6. Step 6: Final answer
   x = 7,686.66