Finding the Fourth Proportional to 7,061.31, 9,744.24 and 4,078.08

Step by Step Solution

1. Step 1: Write the proportion equation
   7,061.31 : 9,744.24 = 4,078.08 : x
2. Step 2: Convert to fraction form
   7,061.31/9,744.24 = 4,078.08/x
3. Step 3: Cross multiply
   7,061.31x = 9,744.24 × 4,078.08
4. Step 4: Simplify right side
   7,061.31x = 39,737,790.26
5. Step 5: Solve for x
   x = 39,737,790.26/7,061.31
6. Step 6: Final answer
   x = 5,627.54