Finding the Fourth Proportional to 10,880.01, 15,008.61 and 8,222.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,880.01 : 15,008.61 = 8,222.80 : x
2. Step 2: Convert to fraction form
   10,880.01/15,008.61 = 8,222.80/x
3. Step 3: Cross multiply
   10,880.01x = 15,008.61 × 8,222.80
4. Step 4: Simplify right side
   10,880.01x = 123,412,798.31
5. Step 5: Solve for x
   x = 123,412,798.31/10,880.01
6. Step 6: Final answer
   x = 11,343.08