Finding the Fourth Proportional to 10,447.88, 14,420.37 and 7,222.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,447.88 : 14,420.37 = 7,222.22 : x
2. Step 2: Convert to fraction form
   10,447.88/14,420.37 = 7,222.22/x
3. Step 3: Cross multiply
   10,447.88x = 14,420.37 × 7,222.22
4. Step 4: Simplify right side
   10,447.88x = 104,147,084.62
5. Step 5: Solve for x
   x = 104,147,084.62/10,447.88
6. Step 6: Final answer
   x = 9,968.25