Finding the Fourth Proportional to 70,955.12, 106,215.34 and 45,945.42

Step by Step Solution

1. Step 1: Write the proportion equation
   70,955.12 : 106,215.34 = 45,945.42 : x
2. Step 2: Convert to fraction form
   70,955.12/106,215.34 = 45,945.42/x
3. Step 3: Cross multiply
   70,955.12x = 106,215.34 × 45,945.42
4. Step 4: Simplify right side
   70,955.12x = 4,880,108,406.74
5. Step 5: Solve for x
   x = 4,880,108,406.74/70,955.12
6. Step 6: Final answer
   x = 68,777.40