Finding the Fourth Proportional to 79,143.10, 109,218.12 and 46,879.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,143.10 : 109,218.12 = 46,879.50 : x
2. Step 2: Convert to fraction form
   79,143.10/109,218.12 = 46,879.50/x
3. Step 3: Cross multiply
   79,143.10x = 109,218.12 × 46,879.50
4. Step 4: Simplify right side
   79,143.10x = 5,120,090,856.54
5. Step 5: Solve for x
   x = 5,120,090,856.54/79,143.10
6. Step 6: Final answer
   x = 64,694.09