Finding the Fourth Proportional to 105,890.76, 146,077.94 and 70,110.75

Step by Step Solution

1. Step 1: Write the proportion equation
   105,890.76 : 146,077.94 = 70,110.75 : x
2. Step 2: Convert to fraction form
   105,890.76/146,077.94 = 70,110.75/x
3. Step 3: Cross multiply
   105,890.76x = 146,077.94 × 70,110.75
4. Step 4: Simplify right side
   105,890.76x = 10,241,633,931.86
5. Step 5: Solve for x
   x = 10,241,633,931.86/105,890.76
6. Step 6: Final answer
   x = 96,718.86