Finding the Fourth Proportional to 6,111.95, 8,422.40 and 4,338.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.95 : 8,422.40 = 4,338.59 : x
2. Step 2: Convert to fraction form
   6,111.95/8,422.40 = 4,338.59/x
3. Step 3: Cross multiply
   6,111.95x = 8,422.40 × 4,338.59
4. Step 4: Simplify right side
   6,111.95x = 36,541,318.72
5. Step 5: Solve for x
   x = 36,541,318.72/6,111.95
6. Step 6: Final answer
   x = 5,978.67