Finding the Fourth Proportional to 9,017.86, 12,440.34 and 5,659

Step by Step Solution

1. Step 1: Write the proportion equation
   9,017.86 : 12,440.34 = 5,659 : x
2. Step 2: Convert to fraction form
   9,017.86/12,440.34 = 5,659/x
3. Step 3: Cross multiply
   9,017.86x = 12,440.34 × 5,659
4. Step 4: Simplify right side
   9,017.86x = 70,399,884.06
5. Step 5: Solve for x
   x = 70,399,884.06/9,017.86
6. Step 6: Final answer
   x = 7,806.72