Finding the Fourth Proportional to 9,537.72, 14,303.92 and 5,315.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,537.72 : 14,303.92 = 5,315.78 : x
2. Step 2: Convert to fraction form
   9,537.72/14,303.92 = 5,315.78/x
3. Step 3: Cross multiply
   9,537.72x = 14,303.92 × 5,315.78
4. Step 4: Simplify right side
   9,537.72x = 76,036,491.86
5. Step 5: Solve for x
   x = 76,036,491.86/9,537.72
6. Step 6: Final answer
   x = 7,972.19