Finding the Fourth Proportional to 12,158.42, 16,782.81 and 7,124.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,158.42 : 16,782.81 = 7,124.27 : x
2. Step 2: Convert to fraction form
   12,158.42/16,782.81 = 7,124.27/x
3. Step 3: Cross multiply
   12,158.42x = 16,782.81 × 7,124.27
4. Step 4: Simplify right side
   12,158.42x = 119,565,222.10
5. Step 5: Solve for x
   x = 119,565,222.10/12,158.42
6. Step 6: Final answer
   x = 9,833.95