Finding the Fourth Proportional to 47,020.12, 64,905.83 and 31,919.53

Step by Step Solution

1. Step 1: Write the proportion equation
   47,020.12 : 64,905.83 = 31,919.53 : x
2. Step 2: Convert to fraction form
   47,020.12/64,905.83 = 31,919.53/x
3. Step 3: Cross multiply
   47,020.12x = 64,905.83 × 31,919.53
4. Step 4: Simplify right side
   47,020.12x = 2,071,763,103.73
5. Step 5: Solve for x
   x = 2,071,763,103.73/47,020.12
6. Step 6: Final answer
   x = 44,061.21