Finding the Fourth Proportional to 9,431.15, 13,017.32 and 5,454.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,431.15 : 13,017.32 = 5,454.56 : x
2. Step 2: Convert to fraction form
   9,431.15/13,017.32 = 5,454.56/x
3. Step 3: Cross multiply
   9,431.15x = 13,017.32 × 5,454.56
4. Step 4: Simplify right side
   9,431.15x = 71,003,778.70
5. Step 5: Solve for x
   x = 71,003,778.70/9,431.15
6. Step 6: Final answer
   x = 7,528.65