Finding the Fourth Proportional to 14,196.60, 19,591.52 and 7,909

Step by Step Solution

1. Step 1: Write the proportion equation
   14,196.60 : 19,591.52 = 7,909 : x
2. Step 2: Convert to fraction form
   14,196.60/19,591.52 = 7,909/x
3. Step 3: Cross multiply
   14,196.60x = 19,591.52 × 7,909
4. Step 4: Simplify right side
   14,196.60x = 154,949,331.68
5. Step 5: Solve for x
   x = 154,949,331.68/14,196.60
6. Step 6: Final answer
   x = 10,914.54