Finding the Fourth Proportional to 78,037.94, 117,078.78 and 31,323.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,037.94 : 117,078.78 = 31,323.62 : x
2. Step 2: Convert to fraction form
   78,037.94/117,078.78 = 31,323.62/x
3. Step 3: Cross multiply
   78,037.94x = 117,078.78 × 31,323.62
4. Step 4: Simplify right side
   78,037.94x = 3,667,331,214.78
5. Step 5: Solve for x
   x = 3,667,331,214.78/78,037.94
6. Step 6: Final answer
   x = 46,994.21