Finding the Fourth Proportional to 14,196.80, 19,590.18 and 7,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,196.80 : 19,590.18 = 7,908.50 : x
2. Step 2: Convert to fraction form
   14,196.80/19,590.18 = 7,908.50/x
3. Step 3: Cross multiply
   14,196.80x = 19,590.18 × 7,908.50
4. Step 4: Simplify right side
   14,196.80x = 154,928,938.53
5. Step 5: Solve for x
   x = 154,928,938.53/14,196.80
6. Step 6: Final answer
   x = 10,912.95