Finding the Fourth Proportional to 10,116.72, 13,962.85 and 7,722.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,116.72 : 13,962.85 = 7,722.77 : x
2. Step 2: Convert to fraction form
   10,116.72/13,962.85 = 7,722.77/x
3. Step 3: Cross multiply
   10,116.72x = 13,962.85 × 7,722.77
4. Step 4: Simplify right side
   10,116.72x = 107,831,789.97
5. Step 5: Solve for x
   x = 107,831,789.97/10,116.72
6. Step 6: Final answer
   x = 10,658.77