Finding the Fourth Proportional to 14,350.89, 21,510.15 and 7,311.15

Step by Step Solution

1. Step 1: Write the proportion equation
   14,350.89 : 21,510.15 = 7,311.15 : x
2. Step 2: Convert to fraction form
   14,350.89/21,510.15 = 7,311.15/x
3. Step 3: Cross multiply
   14,350.89x = 21,510.15 × 7,311.15
4. Step 4: Simplify right side
   14,350.89x = 157,263,933.17
5. Step 5: Solve for x
   x = 157,263,933.17/14,350.89
6. Step 6: Final answer
   x = 10,958.48