Finding the Fourth Proportional to 14,665.05, 20,237.88 and 7,950.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,665.05 : 20,237.88 = 7,950.78 : x
2. Step 2: Convert to fraction form
   14,665.05/20,237.88 = 7,950.78/x
3. Step 3: Cross multiply
   14,665.05x = 20,237.88 × 7,950.78
4. Step 4: Simplify right side
   14,665.05x = 160,906,931.55
5. Step 5: Solve for x
   x = 160,906,931.55/14,665.05
6. Step 6: Final answer
   x = 10,972.14