Finding the Fourth Proportional to 6,111.80, 9,168.84 and 2,822.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.80 : 9,168.84 = 2,822.72 : x
2. Step 2: Convert to fraction form
   6,111.80/9,168.84 = 2,822.72/x
3. Step 3: Cross multiply
   6,111.80x = 9,168.84 × 2,822.72
4. Step 4: Simplify right side
   6,111.80x = 25,881,068.04
5. Step 5: Solve for x
   x = 25,881,068.04/6,111.80
6. Step 6: Final answer
   x = 4,234.61