Finding the Fourth Proportional to 47,049.39, 64,958.49 and 31,155.30

Step by Step Solution

1. Step 1: Write the proportion equation
   47,049.39 : 64,958.49 = 31,155.30 : x
2. Step 2: Convert to fraction form
   47,049.39/64,958.49 = 31,155.30/x
3. Step 3: Cross multiply
   47,049.39x = 64,958.49 × 31,155.30
4. Step 4: Simplify right side
   47,049.39x = 2,023,801,243.50
5. Step 5: Solve for x
   x = 2,023,801,243.50/47,049.39
6. Step 6: Final answer
   x = 43,014.40