Finding the Fourth Proportional to 79,221, 109,324.98 and 47,391.24

Step by Step Solution

1. Step 1: Write the proportion equation
   79,221 : 109,324.98 = 47,391.24 : x
2. Step 2: Convert to fraction form
   79,221/109,324.98 = 47,391.24/x
3. Step 3: Cross multiply
   79,221x = 109,324.98 × 47,391.24
4. Step 4: Simplify right side
   79,221x = 5,181,046,365.18
5. Step 5: Solve for x
   x = 5,181,046,365.18/79,221
6. Step 6: Final answer
   x = 65,399.91