Finding the Fourth Proportional to 51,399.50, 70,901.73 and 30,174.66

Step by Step Solution

1. Step 1: Write the proportion equation
   51,399.50 : 70,901.73 = 30,174.66 : x
2. Step 2: Convert to fraction form
   51,399.50/70,901.73 = 30,174.66/x
3. Step 3: Cross multiply
   51,399.50x = 70,901.73 × 30,174.66
4. Step 4: Simplify right side
   51,399.50x = 2,139,435,596.16
5. Step 5: Solve for x
   x = 2,139,435,596.16/51,399.50
6. Step 6: Final answer
   x = 41,623.67