Finding the Fourth Proportional to 65,166.78, 89,930.10 and 35,358.78

Step by Step Solution

1. Step 1: Write the proportion equation
   65,166.78 : 89,930.10 = 35,358.78 : x
2. Step 2: Convert to fraction form
   65,166.78/89,930.10 = 35,358.78/x
3. Step 3: Cross multiply
   65,166.78x = 89,930.10 × 35,358.78
4. Step 4: Simplify right side
   65,166.78x = 3,179,818,621.28
5. Step 5: Solve for x
   x = 3,179,818,621.28/65,166.78
6. Step 6: Final answer
   x = 48,795.09