Finding the Fourth Proportional to 9,798.72, 13,522.32 and 5,607.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,798.72 : 13,522.32 = 5,607.12 : x
2. Step 2: Convert to fraction form
   9,798.72/13,522.32 = 5,607.12/x
3. Step 3: Cross multiply
   9,798.72x = 13,522.32 × 5,607.12
4. Step 4: Simplify right side
   9,798.72x = 75,821,270.92
5. Step 5: Solve for x
   x = 75,821,270.92/9,798.72
6. Step 6: Final answer
   x = 7,737.88