Finding the Fourth Proportional to 141,662.39, 195,494.31 and 78,000.37

Step by Step Solution

1. Step 1: Write the proportion equation
   141,662.39 : 195,494.31 = 78,000.37 : x
2. Step 2: Convert to fraction form
   141,662.39/195,494.31 = 78,000.37/x
3. Step 3: Cross multiply
   141,662.39x = 195,494.31 × 78,000.37
4. Step 4: Simplify right side
   141,662.39x = 15,248,628,024.16
5. Step 5: Solve for x
   x = 15,248,628,024.16/141,662.39
6. Step 6: Final answer
   x = 107,640.63