Finding the Fourth Proportional to 47,965.59, 71,948.33 and 12,905.24

Step by Step Solution

1. Step 1: Write the proportion equation
   47,965.59 : 71,948.33 = 12,905.24 : x
2. Step 2: Convert to fraction form
   47,965.59/71,948.33 = 12,905.24/x
3. Step 3: Cross multiply
   47,965.59x = 71,948.33 × 12,905.24
4. Step 4: Simplify right side
   47,965.59x = 928,510,401.72
5. Step 5: Solve for x
   x = 928,510,401.72/47,965.59
6. Step 6: Final answer
   x = 19,357.85