Finding the Fourth Proportional to 49,600.42, 68,441.40 and 28,375.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,600.42 : 68,441.40 = 28,375.72 : x
2. Step 2: Convert to fraction form
   49,600.42/68,441.40 = 28,375.72/x
3. Step 3: Cross multiply
   49,600.42x = 68,441.40 × 28,375.72
4. Step 4: Simplify right side
   49,600.42x = 1,942,074,002.81
5. Step 5: Solve for x
   x = 1,942,074,002.81/49,600.42
6. Step 6: Final answer
   x = 39,154.39