Finding the Fourth Proportional to 65,236.68, 89,964.62 and 42,568.42

Step by Step Solution

1. Step 1: Write the proportion equation
   65,236.68 : 89,964.62 = 42,568.42 : x
2. Step 2: Convert to fraction form
   65,236.68/89,964.62 = 42,568.42/x
3. Step 3: Cross multiply
   65,236.68x = 89,964.62 × 42,568.42
4. Step 4: Simplify right side
   65,236.68x = 3,829,651,729.30
5. Step 5: Solve for x
   x = 3,829,651,729.30/65,236.68
6. Step 6: Final answer
   x = 58,703.96