Finding the Fourth Proportional to 171,155.90, 256,733.89 and 64,510.97

Step by Step Solution

1. Step 1: Write the proportion equation
   171,155.90 : 256,733.89 = 64,510.97 : x
2. Step 2: Convert to fraction form
   171,155.90/256,733.89 = 64,510.97/x
3. Step 3: Cross multiply
   171,155.90x = 256,733.89 × 64,510.97
4. Step 4: Simplify right side
   171,155.90x = 16,562,150,830.83
5. Step 5: Solve for x
   x = 16,562,150,830.83/171,155.90
6. Step 6: Final answer
   x = 96,766.46