Finding the Fourth Proportional to 64,786.40, 89,374.68 and 37,912.42

Step by Step Solution

1. Step 1: Write the proportion equation
   64,786.40 : 89,374.68 = 37,912.42 : x
2. Step 2: Convert to fraction form
   64,786.40/89,374.68 = 37,912.42/x
3. Step 3: Cross multiply
   64,786.40x = 89,374.68 × 37,912.42
4. Step 4: Simplify right side
   64,786.40x = 3,388,410,405.53
5. Step 5: Solve for x
   x = 3,388,410,405.53/64,786.40
6. Step 6: Final answer
   x = 52,301.26