Finding the Fourth Proportional to 52,976.42, 73,019.64 and 51,574.11

Step by Step Solution

1. Step 1: Write the proportion equation
   52,976.42 : 73,019.64 = 51,574.11 : x
2. Step 2: Convert to fraction form
   52,976.42/73,019.64 = 51,574.11/x
3. Step 3: Cross multiply
   52,976.42x = 73,019.64 × 51,574.11
4. Step 4: Simplify right side
   52,976.42x = 3,765,922,945.52
5. Step 5: Solve for x
   x = 3,765,922,945.52/52,976.42
6. Step 6: Final answer
   x = 71,086.78