Finding the Fourth Proportional to 5,382.34, 7,426.32 and 3,142.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,382.34 : 7,426.32 = 3,142.94 : x
2. Step 2: Convert to fraction form
   5,382.34/7,426.32 = 3,142.94/x
3. Step 3: Cross multiply
   5,382.34x = 7,426.32 × 3,142.94
4. Step 4: Simplify right side
   5,382.34x = 23,340,478.18
5. Step 5: Solve for x
   x = 23,340,478.18/5,382.34
6. Step 6: Final answer
   x = 4,336.49