Finding the Fourth Proportional to 47,483.18, 71,228.82 and 12,422.78

Step by Step Solution

1. Step 1: Write the proportion equation
   47,483.18 : 71,228.82 = 12,422.78 : x
2. Step 2: Convert to fraction form
   47,483.18/71,228.82 = 12,422.78/x
3. Step 3: Cross multiply
   47,483.18x = 71,228.82 × 12,422.78
4. Step 4: Simplify right side
   47,483.18x = 884,859,960.52
5. Step 5: Solve for x
   x = 884,859,960.52/47,483.18
6. Step 6: Final answer
   x = 18,635.23