Finding the Fourth Proportional to 89,993.78, 134,894.75 and 67,738.34

Step by Step Solution

1. Step 1: Write the proportion equation
   89,993.78 : 134,894.75 = 67,738.34 : x
2. Step 2: Convert to fraction form
   89,993.78/134,894.75 = 67,738.34/x
3. Step 3: Cross multiply
   89,993.78x = 134,894.75 × 67,738.34
4. Step 4: Simplify right side
   89,993.78x = 9,137,546,439.72
5. Step 5: Solve for x
   x = 9,137,546,439.72/89,993.78
6. Step 6: Final answer
   x = 101,535.31