Finding the Fourth Proportional to 79,081.42, 109,121.61 and 47,243.56

Step by Step Solution

1. Step 1: Write the proportion equation
   79,081.42 : 109,121.61 = 47,243.56 : x
2. Step 2: Convert to fraction form
   79,081.42/109,121.61 = 47,243.56/x
3. Step 3: Cross multiply
   79,081.42x = 109,121.61 × 47,243.56
4. Step 4: Simplify right side
   79,081.42x = 5,155,293,329.33
5. Step 5: Solve for x
   x = 5,155,293,329.33/79,081.42
6. Step 6: Final answer
   x = 65,189.69