Finding the Fourth Proportional to 49,139.30, 67,812.46 and 27,919.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,139.30 : 67,812.46 = 27,919.72 : x
2. Step 2: Convert to fraction form
   49,139.30/67,812.46 = 27,919.72/x
3. Step 3: Cross multiply
   49,139.30x = 67,812.46 × 27,919.72
4. Step 4: Simplify right side
   49,139.30x = 1,893,304,895.71
5. Step 5: Solve for x
   x = 1,893,304,895.71/49,139.30
6. Step 6: Final answer
   x = 38,529.34