Finding the Fourth Proportional to 105,876.32, 146,177.71 and 65,632.78

Step by Step Solution

1. Step 1: Write the proportion equation
   105,876.32 : 146,177.71 = 65,632.78 : x
2. Step 2: Convert to fraction form
   105,876.32/146,177.71 = 65,632.78/x
3. Step 3: Cross multiply
   105,876.32x = 146,177.71 × 65,632.78
4. Step 4: Simplify right side
   105,876.32x = 9,594,049,869.16
5. Step 5: Solve for x
   x = 9,594,049,869.16/105,876.32
6. Step 6: Final answer
   x = 90,615.64