Finding the Fourth Proportional to 12,061.28, 18,098.08 and 5,743.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.28 : 18,098.08 = 5,743.30 : x
2. Step 2: Convert to fraction form
   12,061.28/18,098.08 = 5,743.30/x
3. Step 3: Cross multiply
   12,061.28x = 18,098.08 × 5,743.30
4. Step 4: Simplify right side
   12,061.28x = 103,942,671.98
5. Step 5: Solve for x
   x = 103,942,671.98/12,061.28
6. Step 6: Final answer
   x = 8,617.88