Finding the Fourth Proportional to 7,072.86, 9,753.84 and 5,391.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,072.86 : 9,753.84 = 5,391.30 : x
2. Step 2: Convert to fraction form
   7,072.86/9,753.84 = 5,391.30/x
3. Step 3: Cross multiply
   7,072.86x = 9,753.84 × 5,391.30
4. Step 4: Simplify right side
   7,072.86x = 52,585,877.59
5. Step 5: Solve for x
   x = 52,585,877.59/7,072.86
6. Step 6: Final answer
   x = 7,434.88