Finding the Fourth Proportional to 6,111.38, 8,433.72 and 3,316.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.38 : 8,433.72 = 3,316.88 : x
2. Step 2: Convert to fraction form
   6,111.38/8,433.72 = 3,316.88/x
3. Step 3: Cross multiply
   6,111.38x = 8,433.72 × 3,316.88
4. Step 4: Simplify right side
   6,111.38x = 27,973,595.03
5. Step 5: Solve for x
   x = 27,973,595.03/6,111.38
6. Step 6: Final answer
   x = 4,577.30