Finding the Fourth Proportional to 9,931.22, 13,705.05 and 5,454.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.22 : 13,705.05 = 5,454.96 : x
2. Step 2: Convert to fraction form
   9,931.22/13,705.05 = 5,454.96/x
3. Step 3: Cross multiply
   9,931.22x = 13,705.05 × 5,454.96
4. Step 4: Simplify right side
   9,931.22x = 74,760,515.02
5. Step 5: Solve for x
   x = 74,760,515.02/9,931.22
6. Step 6: Final answer
   x = 7,527.82