Finding the Fourth Proportional to 67,757.50, 101,617.06 and 42,760.10

Step by Step Solution

1. Step 1: Write the proportion equation
   67,757.50 : 101,617.06 = 42,760.10 : x
2. Step 2: Convert to fraction form
   67,757.50/101,617.06 = 42,760.10/x
3. Step 3: Cross multiply
   67,757.50x = 101,617.06 × 42,760.10
4. Step 4: Simplify right side
   67,757.50x = 4,345,155,647.31
5. Step 5: Solve for x
   x = 4,345,155,647.31/67,757.50
6. Step 6: Final answer
   x = 64,128.04