Finding the Fourth Proportional to 5,162.43, 7,123.55 and 3,038.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,162.43 : 7,123.55 = 3,038.61 : x
2. Step 2: Convert to fraction form
   5,162.43/7,123.55 = 3,038.61/x
3. Step 3: Cross multiply
   5,162.43x = 7,123.55 × 3,038.61
4. Step 4: Simplify right side
   5,162.43x = 21,645,701.79
5. Step 5: Solve for x
   x = 21,645,701.79/5,162.43
6. Step 6: Final answer
   x = 4,192.93