Finding the Fourth Proportional to 10,222.22, 14,146.55 and 9,976.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,222.22 : 14,146.55 = 9,976.39 : x
2. Step 2: Convert to fraction form
   10,222.22/14,146.55 = 9,976.39/x
3. Step 3: Cross multiply
   10,222.22x = 14,146.55 × 9,976.39
4. Step 4: Simplify right side
   10,222.22x = 141,131,489.53
5. Step 5: Solve for x
   x = 141,131,489.53/10,222.22
6. Step 6: Final answer
   x = 13,806.34