Finding the Fourth Proportional to 70,662.56, 105,993.59 and 67,114.97

Step by Step Solution

1. Step 1: Write the proportion equation
   70,662.56 : 105,993.59 = 67,114.97 : x
2. Step 2: Convert to fraction form
   70,662.56/105,993.59 = 67,114.97/x
3. Step 3: Cross multiply
   70,662.56x = 105,993.59 × 67,114.97
4. Step 4: Simplify right side
   70,662.56x = 7,113,755,747.50
5. Step 5: Solve for x
   x = 7,113,755,747.50/70,662.56
6. Step 6: Final answer
   x = 100,672.21