Finding the Fourth Proportional to 9,948.06, 13,728.03 and 5,471.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,948.06 : 13,728.03 = 5,471.81 : x
2. Step 2: Convert to fraction form
   9,948.06/13,728.03 = 5,471.81/x
3. Step 3: Cross multiply
   9,948.06x = 13,728.03 × 5,471.81
4. Step 4: Simplify right side
   9,948.06x = 75,117,188.93
5. Step 5: Solve for x
   x = 75,117,188.93/9,948.06
6. Step 6: Final answer
   x = 7,550.94