Finding the Fourth Proportional to 14,662.35, 21,945.42 and 7,988.67

Step by Step Solution

1. Step 1: Write the proportion equation
   14,662.35 : 21,945.42 = 7,988.67 : x
2. Step 2: Convert to fraction form
   14,662.35/21,945.42 = 7,988.67/x
3. Step 3: Cross multiply
   14,662.35x = 21,945.42 × 7,988.67
4. Step 4: Simplify right side
   14,662.35x = 175,314,718.39
5. Step 5: Solve for x
   x = 175,314,718.39/14,662.35
6. Step 6: Final answer
   x = 11,956.80