Finding the Fourth Proportional to 71,870.98, 107,729.06 and 34,351.29

Step by Step Solution

1. Step 1: Write the proportion equation
   71,870.98 : 107,729.06 = 34,351.29 : x
2. Step 2: Convert to fraction form
   71,870.98/107,729.06 = 34,351.29/x
3. Step 3: Cross multiply
   71,870.98x = 107,729.06 × 34,351.29
4. Step 4: Simplify right side
   71,870.98x = 3,700,632,181.49
5. Step 5: Solve for x
   x = 3,700,632,181.49/71,870.98
6. Step 6: Final answer
   x = 51,489.94