Finding the Fourth Proportional to 7,722.35, 10,656.89 and 4,185.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,722.35 : 10,656.89 = 4,185.55 : x
2. Step 2: Convert to fraction form
   7,722.35/10,656.89 = 4,185.55/x
3. Step 3: Cross multiply
   7,722.35x = 10,656.89 × 4,185.55
4. Step 4: Simplify right side
   7,722.35x = 44,604,945.94
5. Step 5: Solve for x
   x = 44,604,945.94/7,722.35
6. Step 6: Final answer
   x = 5,776.08