Finding the Fourth Proportional to 65,217.94, 89,979.18 and 45,067.56

Step by Step Solution

1. Step 1: Write the proportion equation
   65,217.94 : 89,979.18 = 45,067.56 : x
2. Step 2: Convert to fraction form
   65,217.94/89,979.18 = 45,067.56/x
3. Step 3: Cross multiply
   65,217.94x = 89,979.18 × 45,067.56
4. Step 4: Simplify right side
   65,217.94x = 4,055,142,093.40
5. Step 5: Solve for x
   x = 4,055,142,093.40/65,217.94
6. Step 6: Final answer
   x = 62,178.32