Finding the Fourth Proportional to 49,049.42, 67,690.41 and 28,907.15

Step by Step Solution

1. Step 1: Write the proportion equation
   49,049.42 : 67,690.41 = 28,907.15 : x
2. Step 2: Convert to fraction form
   49,049.42/67,690.41 = 28,907.15/x
3. Step 3: Cross multiply
   49,049.42x = 67,690.41 × 28,907.15
4. Step 4: Simplify right side
   49,049.42x = 1,956,736,496.98
5. Step 5: Solve for x
   x = 1,956,736,496.98/49,049.42
6. Step 6: Final answer
   x = 39,893.17