Finding the Fourth Proportional to 47,400.93, 70,793.73 and 42,949.78

Step by Step Solution

1. Step 1: Write the proportion equation
   47,400.93 : 70,793.73 = 42,949.78 : x
2. Step 2: Convert to fraction form
   47,400.93/70,793.73 = 42,949.78/x
3. Step 3: Cross multiply
   47,400.93x = 70,793.73 × 42,949.78
4. Step 4: Simplify right side
   47,400.93x = 3,040,574,951.90
5. Step 5: Solve for x
   x = 3,040,574,951.90/47,400.93
6. Step 6: Final answer
   x = 64,145.89