Finding the Fourth Proportional to 14,196.39, 19,591.38 and 7,908.90

Step by Step Solution

1. Step 1: Write the proportion equation
   14,196.39 : 19,591.38 = 7,908.90 : x
2. Step 2: Convert to fraction form
   14,196.39/19,591.38 = 7,908.90/x
3. Step 3: Cross multiply
   14,196.39x = 19,591.38 × 7,908.90
4. Step 4: Simplify right side
   14,196.39x = 154,946,265.28
5. Step 5: Solve for x
   x = 154,946,265.28/14,196.39
6. Step 6: Final answer
   x = 10,914.48