Finding the Fourth Proportional to 47,871.12, 71,819.46 and 42,641.94

Step by Step Solution

1. Step 1: Write the proportion equation
   47,871.12 : 71,819.46 = 42,641.94 : x
2. Step 2: Convert to fraction form
   47,871.12/71,819.46 = 42,641.94/x
3. Step 3: Cross multiply
   47,871.12x = 71,819.46 × 42,641.94
4. Step 4: Simplify right side
   47,871.12x = 3,062,521,104.15
5. Step 5: Solve for x
   x = 3,062,521,104.15/47,871.12
6. Step 6: Final answer
   x = 63,974.29