Finding the Fourth Proportional to 6,839.91, 9,436.86 and 4,184.55

Step by Step Solution

1. Step 1: Write the proportion equation
   6,839.91 : 9,436.86 = 4,184.55 : x
2. Step 2: Convert to fraction form
   6,839.91/9,436.86 = 4,184.55/x
3. Step 3: Cross multiply
   6,839.91x = 9,436.86 × 4,184.55
4. Step 4: Simplify right side
   6,839.91x = 39,489,012.51
5. Step 5: Solve for x
   x = 39,489,012.51/6,839.91
6. Step 6: Final answer
   x = 5,773.32