Finding the Fourth Proportional to 71,018.17, 106,425.75 and 52,150.18

Step by Step Solution

1. Step 1: Write the proportion equation
   71,018.17 : 106,425.75 = 52,150.18 : x
2. Step 2: Convert to fraction form
   71,018.17/106,425.75 = 52,150.18/x
3. Step 3: Cross multiply
   71,018.17x = 106,425.75 × 52,150.18
4. Step 4: Simplify right side
   71,018.17x = 5,550,122,019.14
5. Step 5: Solve for x
   x = 5,550,122,019.14/71,018.17
6. Step 6: Final answer
   x = 78,150.73