Finding the Fourth Proportional to 64,762.96, 89,377.50 and 36,085

Step by Step Solution

1. Step 1: Write the proportion equation
   64,762.96 : 89,377.50 = 36,085 : x
2. Step 2: Convert to fraction form
   64,762.96/89,377.50 = 36,085/x
3. Step 3: Cross multiply
   64,762.96x = 89,377.50 × 36,085
4. Step 4: Simplify right side
   64,762.96x = 3,225,187,087.50
5. Step 5: Solve for x
   x = 3,225,187,087.50/64,762.96
6. Step 6: Final answer
   x = 49,799.87