Finding the Fourth Proportional to 10,363.71, 14,297.64 and 7,221.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,363.71 : 14,297.64 = 7,221.72 : x
2. Step 2: Convert to fraction form
   10,363.71/14,297.64 = 7,221.72/x
3. Step 3: Cross multiply
   10,363.71x = 14,297.64 × 7,221.72
4. Step 4: Simplify right side
   10,363.71x = 103,253,552.74
5. Step 5: Solve for x
   x = 103,253,552.74/10,363.71
6. Step 6: Final answer
   x = 9,962.99