Finding the Fourth Proportional to 67,978.17, 102,029.51 and 34,721.55

Step by Step Solution

1. Step 1: Write the proportion equation
   67,978.17 : 102,029.51 = 34,721.55 : x
2. Step 2: Convert to fraction form
   67,978.17/102,029.51 = 34,721.55/x
3. Step 3: Cross multiply
   67,978.17x = 102,029.51 × 34,721.55
4. Step 4: Simplify right side
   67,978.17x = 3,542,622,732.94
5. Step 5: Solve for x
   x = 3,542,622,732.94/67,978.17
6. Step 6: Final answer
   x = 52,114.12