Finding the Fourth Proportional to 64,870.74, 89,517.96 and 36,574.74

Step by Step Solution

1. Step 1: Write the proportion equation
   64,870.74 : 89,517.96 = 36,574.74 : x
2. Step 2: Convert to fraction form
   64,870.74/89,517.96 = 36,574.74/x
3. Step 3: Cross multiply
   64,870.74x = 89,517.96 × 36,574.74
4. Step 4: Simplify right side
   64,870.74x = 3,274,096,112.33
5. Step 5: Solve for x
   x = 3,274,096,112.33/64,870.74
6. Step 6: Final answer
   x = 50,471.08