Finding the Fourth Proportional to 71,333.37, 106,835.57 and 51,217.98

Step by Step Solution

1. Step 1: Write the proportion equation
   71,333.37 : 106,835.57 = 51,217.98 : x
2. Step 2: Convert to fraction form
   71,333.37/106,835.57 = 51,217.98/x
3. Step 3: Cross multiply
   71,333.37x = 106,835.57 × 51,217.98
4. Step 4: Simplify right side
   71,333.37x = 5,471,901,831.46
5. Step 5: Solve for x
   x = 5,471,901,831.46/71,333.37
6. Step 6: Final answer
   x = 76,708.87