Finding the Fourth Proportional to 49,002.15, 67,638.20 and 38,948.43

Step by Step Solution

1. Step 1: Write the proportion equation
   49,002.15 : 67,638.20 = 38,948.43 : x
2. Step 2: Convert to fraction form
   49,002.15/67,638.20 = 38,948.43/x
3. Step 3: Cross multiply
   49,002.15x = 67,638.20 × 38,948.43
4. Step 4: Simplify right side
   49,002.15x = 2,634,401,698.03
5. Step 5: Solve for x
   x = 2,634,401,698.03/49,002.15
6. Step 6: Final answer
   x = 53,760.94