Finding the Fourth Proportional to 9,948.30, 13,728.72 and 5,410.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,948.30 : 13,728.72 = 5,410.98 : x
2. Step 2: Convert to fraction form
   9,948.30/13,728.72 = 5,410.98/x
3. Step 3: Cross multiply
   9,948.30x = 13,728.72 × 5,410.98
4. Step 4: Simplify right side
   9,948.30x = 74,285,829.35
5. Step 5: Solve for x
   x = 74,285,829.35/9,948.30
6. Step 6: Final answer
   x = 7,467.19