Finding the Fourth Proportional to 47,406.18, 71,103.18 and 12,348.56

Step by Step Solution

1. Step 1: Write the proportion equation
   47,406.18 : 71,103.18 = 12,348.56 : x
2. Step 2: Convert to fraction form
   47,406.18/71,103.18 = 12,348.56/x
3. Step 3: Cross multiply
   47,406.18x = 71,103.18 × 12,348.56
4. Step 4: Simplify right side
   47,406.18x = 878,021,884.42
5. Step 5: Solve for x
   x = 878,021,884.42/47,406.18
6. Step 6: Final answer
   x = 18,521.25