Finding the Fourth Proportional to 9,956.41, 13,739.54 and 5,480.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,956.41 : 13,739.54 = 5,480.16 : x
2. Step 2: Convert to fraction form
   9,956.41/13,739.54 = 5,480.16/x
3. Step 3: Cross multiply
   9,956.41x = 13,739.54 × 5,480.16
4. Step 4: Simplify right side
   9,956.41x = 75,294,877.53
5. Step 5: Solve for x
   x = 75,294,877.53/9,956.41
6. Step 6: Final answer
   x = 7,562.45