Finding the Fourth Proportional to 100,685.26, 150,933.52 and 34,078.78

Step by Step Solution

1. Step 1: Write the proportion equation
   100,685.26 : 150,933.52 = 34,078.78 : x
2. Step 2: Convert to fraction form
   100,685.26/150,933.52 = 34,078.78/x
3. Step 3: Cross multiply
   100,685.26x = 150,933.52 × 34,078.78
4. Step 4: Simplify right side
   100,685.26x = 5,143,630,222.71
5. Step 5: Solve for x
   x = 5,143,630,222.71/100,685.26
6. Step 6: Final answer
   x = 51,086.23