Finding the Fourth Proportional to 64,921.50, 89,591.94 and 35,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,921.50 : 89,591.94 = 35,113.50 : x
2. Step 2: Convert to fraction form
   64,921.50/89,591.94 = 35,113.50/x
3. Step 3: Cross multiply
   64,921.50x = 89,591.94 × 35,113.50
4. Step 4: Simplify right side
   64,921.50x = 3,145,886,585.19
5. Step 5: Solve for x
   x = 3,145,886,585.19/64,921.50
6. Step 6: Final answer
   x = 48,456.78