Finding the Fourth Proportional to 78,443.48, 108,279.78 and 46,612.19

Step by Step Solution

1. Step 1: Write the proportion equation
   78,443.48 : 108,279.78 = 46,612.19 : x
2. Step 2: Convert to fraction form
   78,443.48/108,279.78 = 46,612.19/x
3. Step 3: Cross multiply
   78,443.48x = 108,279.78 × 46,612.19
4. Step 4: Simplify right side
   78,443.48x = 5,047,157,678.52
5. Step 5: Solve for x
   x = 5,047,157,678.52/78,443.48
6. Step 6: Final answer
   x = 64,341.33