Finding the Fourth Proportional to 6,111.79, 8,435.58 and 3,722.55

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.79 : 8,435.58 = 3,722.55 : x
2. Step 2: Convert to fraction form
   6,111.79/8,435.58 = 3,722.55/x
3. Step 3: Cross multiply
   6,111.79x = 8,435.58 × 3,722.55
4. Step 4: Simplify right side
   6,111.79x = 31,401,868.33
5. Step 5: Solve for x
   x = 31,401,868.33/6,111.79
6. Step 6: Final answer
   x = 5,137.92