Finding the Fourth Proportional to 47,362.78, 65,345.43 and 31,450.42

Step by Step Solution

1. Step 1: Write the proportion equation
   47,362.78 : 65,345.43 = 31,450.42 : x
2. Step 2: Convert to fraction form
   47,362.78/65,345.43 = 31,450.42/x
3. Step 3: Cross multiply
   47,362.78x = 65,345.43 × 31,450.42
4. Step 4: Simplify right side
   47,362.78x = 2,055,141,218.58
5. Step 5: Solve for x
   x = 2,055,141,218.58/47,362.78
6. Step 6: Final answer
   x = 43,391.48