Finding the Fourth Proportional to 49,238.88, 67,948.79 and 28,017.69

Step by Step Solution

1. Step 1: Write the proportion equation
   49,238.88 : 67,948.79 = 28,017.69 : x
2. Step 2: Convert to fraction form
   49,238.88/67,948.79 = 28,017.69/x
3. Step 3: Cross multiply
   49,238.88x = 67,948.79 × 28,017.69
4. Step 4: Simplify right side
   49,238.88x = 1,903,767,994.01
5. Step 5: Solve for x
   x = 1,903,767,994.01/49,238.88
6. Step 6: Final answer
   x = 38,663.92