Finding the Fourth Proportional to 9,820.84, 13,552.98 and 5,572.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,820.84 : 13,552.98 = 5,572.18 : x
2. Step 2: Convert to fraction form
   9,820.84/13,552.98 = 5,572.18/x
3. Step 3: Cross multiply
   9,820.84x = 13,552.98 × 5,572.18
4. Step 4: Simplify right side
   9,820.84x = 75,519,644.10
5. Step 5: Solve for x
   x = 75,519,644.10/9,820.84
6. Step 6: Final answer
   x = 7,689.73