Finding the Fourth Proportional to 64,858.50, 89,504.85 and 35,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,858.50 : 89,504.85 = 35,050.50 : x
2. Step 2: Convert to fraction form
   64,858.50/89,504.85 = 35,050.50/x
3. Step 3: Cross multiply
   64,858.50x = 89,504.85 × 35,050.50
4. Step 4: Simplify right side
   64,858.50x = 3,137,189,744.93
5. Step 5: Solve for x
   x = 3,137,189,744.93/64,858.50
6. Step 6: Final answer
   x = 48,369.75