Finding the Fourth Proportional to 65,164.78, 89,927.34 and 35,356.78

Step by Step Solution

1. Step 1: Write the proportion equation
   65,164.78 : 89,927.34 = 35,356.78 : x
2. Step 2: Convert to fraction form
   65,164.78/89,927.34 = 35,356.78/x
3. Step 3: Cross multiply
   65,164.78x = 89,927.34 × 35,356.78
4. Step 4: Simplify right side
   65,164.78x = 3,179,541,176.37
5. Step 5: Solve for x
   x = 3,179,541,176.37/65,164.78
6. Step 6: Final answer
   x = 48,792.33