Finding the Fourth Proportional to 78,105.70, 107,786.01 and 46,290.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,105.70 : 107,786.01 = 46,290.34 : x
2. Step 2: Convert to fraction form
   78,105.70/107,786.01 = 46,290.34/x
3. Step 3: Cross multiply
   78,105.70x = 107,786.01 × 46,290.34
4. Step 4: Simplify right side
   78,105.70x = 4,989,451,050.14
5. Step 5: Solve for x
   x = 4,989,451,050.14/78,105.70
6. Step 6: Final answer
   x = 63,880.75