Finding the Fourth Proportional to 9,017.31, 12,440.25 and 5,993.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,017.31 : 12,440.25 = 5,993.90 : x
2. Step 2: Convert to fraction form
   9,017.31/12,440.25 = 5,993.90/x
3. Step 3: Cross multiply
   9,017.31x = 12,440.25 × 5,993.90
4. Step 4: Simplify right side
   9,017.31x = 74,565,598.92
5. Step 5: Solve for x
   x = 74,565,598.92/9,017.31
6. Step 6: Final answer
   x = 8,269.16