Finding the Fourth Proportional to 9,948.04, 13,728.63 and 5,471.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,948.04 : 13,728.63 = 5,471.98 : x
2. Step 2: Convert to fraction form
   9,948.04/13,728.63 = 5,471.98/x
3. Step 3: Cross multiply
   9,948.04x = 13,728.63 × 5,471.98
4. Step 4: Simplify right side
   9,948.04x = 75,122,788.79
5. Step 5: Solve for x
   x = 75,122,788.79/9,948.04
6. Step 6: Final answer
   x = 7,551.52