Finding the Fourth Proportional to 21,662.79, 32,496.89 and 7,619.51

Step by Step Solution

1. Step 1: Write the proportion equation
   21,662.79 : 32,496.89 = 7,619.51 : x
2. Step 2: Convert to fraction form
   21,662.79/32,496.89 = 7,619.51/x
3. Step 3: Cross multiply
   21,662.79x = 32,496.89 × 7,619.51
4. Step 4: Simplify right side
   21,662.79x = 247,610,177.74
5. Step 5: Solve for x
   x = 247,610,177.74/21,662.79
6. Step 6: Final answer
   x = 11,430.21