Finding the Fourth Proportional to 71,018.29, 106,425.94 and 52,150.31

Step by Step Solution

1. Step 1: Write the proportion equation
   71,018.29 : 106,425.94 = 52,150.31 : x
2. Step 2: Convert to fraction form
   71,018.29/106,425.94 = 52,150.31/x
3. Step 3: Cross multiply
   71,018.29x = 106,425.94 × 52,150.31
4. Step 4: Simplify right side
   71,018.29x = 5,550,145,763.04
5. Step 5: Solve for x
   x = 5,550,145,763.04/71,018.29
6. Step 6: Final answer
   x = 78,150.93