Finding the Fourth Proportional to 82,468.38, 123,739.46 and 47,408.07

Step by Step Solution

1. Step 1: Write the proportion equation
   82,468.38 : 123,739.46 = 47,408.07 : x
2. Step 2: Convert to fraction form
   82,468.38/123,739.46 = 47,408.07/x
3. Step 3: Cross multiply
   82,468.38x = 123,739.46 × 47,408.07
4. Step 4: Simplify right side
   82,468.38x = 5,866,248,981.44
5. Step 5: Solve for x
   x = 5,866,248,981.44/82,468.38
6. Step 6: Final answer
   x = 71,133.31