Finding the Fourth Proportional to 8,816.79, 12,166.41 and 5,039.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,816.79 : 12,166.41 = 5,039.22 : x
2. Step 2: Convert to fraction form
   8,816.79/12,166.41 = 5,039.22/x
3. Step 3: Cross multiply
   8,816.79x = 12,166.41 × 5,039.22
4. Step 4: Simplify right side
   8,816.79x = 61,309,216.60
5. Step 5: Solve for x
   x = 61,309,216.60/8,816.79
6. Step 6: Final answer
   x = 6,953.69