Finding the Fourth Proportional to 67,764.12, 101,257.88 and 51,665.12

Step by Step Solution

1. Step 1: Write the proportion equation
   67,764.12 : 101,257.88 = 51,665.12 : x
2. Step 2: Convert to fraction form
   67,764.12/101,257.88 = 51,665.12/x
3. Step 3: Cross multiply
   67,764.12x = 101,257.88 × 51,665.12
4. Step 4: Simplify right side
   67,764.12x = 5,231,500,521.15
5. Step 5: Solve for x
   x = 5,231,500,521.15/67,764.12
6. Step 6: Final answer
   x = 77,201.63