Finding the Fourth Proportional to 9,920.84, 13,686.04 and 5,941.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,920.84 : 13,686.04 = 5,941.20 : x
2. Step 2: Convert to fraction form
   9,920.84/13,686.04 = 5,941.20/x
3. Step 3: Cross multiply
   9,920.84x = 13,686.04 × 5,941.20
4. Step 4: Simplify right side
   9,920.84x = 81,311,500.85
5. Step 5: Solve for x
   x = 81,311,500.85/9,920.84
6. Step 6: Final answer
   x = 8,196.03