Finding the Fourth Proportional to 49,134.42, 67,803.21 and 28,992.15

Step by Step Solution

1. Step 1: Write the proportion equation
   49,134.42 : 67,803.21 = 28,992.15 : x
2. Step 2: Convert to fraction form
   49,134.42/67,803.21 = 28,992.15/x
3. Step 3: Cross multiply
   49,134.42x = 67,803.21 × 28,992.15
4. Step 4: Simplify right side
   49,134.42x = 1,965,760,834.80
5. Step 5: Solve for x
   x = 1,965,760,834.80/49,134.42
6. Step 6: Final answer
   x = 40,007.82