Finding the Fourth Proportional to 78,049.94, 117,003.14 and 28,117.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,049.94 : 117,003.14 = 28,117.82 : x
2. Step 2: Convert to fraction form
   78,049.94/117,003.14 = 28,117.82/x
3. Step 3: Cross multiply
   78,049.94x = 117,003.14 × 28,117.82
4. Step 4: Simplify right side
   78,049.94x = 3,289,873,229.95
5. Step 5: Solve for x
   x = 3,289,873,229.95/78,049.94
6. Step 6: Final answer
   x = 42,150.87