Finding the Fourth Proportional to 14,096.79, 19,453.59 and 7,809.21

Step by Step Solution

1. Step 1: Write the proportion equation
   14,096.79 : 19,453.59 = 7,809.21 : x
2. Step 2: Convert to fraction form
   14,096.79/19,453.59 = 7,809.21/x
3. Step 3: Cross multiply
   14,096.79x = 19,453.59 × 7,809.21
4. Step 4: Simplify right side
   14,096.79x = 151,917,169.56
5. Step 5: Solve for x
   x = 151,917,169.56/14,096.79
6. Step 6: Final answer
   x = 10,776.72