Finding the Fourth Proportional to 7,064.31, 9,738.33 and 5,382.79

Step by Step Solution

1. Step 1: Write the proportion equation
   7,064.31 : 9,738.33 = 5,382.79 : x
2. Step 2: Convert to fraction form
   7,064.31/9,738.33 = 5,382.79/x
3. Step 3: Cross multiply
   7,064.31x = 9,738.33 × 5,382.79
4. Step 4: Simplify right side
   7,064.31x = 52,419,340.81
5. Step 5: Solve for x
   x = 52,419,340.81/7,064.31
6. Step 6: Final answer
   x = 7,420.30