Finding the Fourth Proportional to 116,478.57, 174,689 and 49,911.15

Step by Step Solution

1. Step 1: Write the proportion equation
   116,478.57 : 174,689 = 49,911.15 : x
2. Step 2: Convert to fraction form
   116,478.57/174,689 = 49,911.15/x
3. Step 3: Cross multiply
   116,478.57x = 174,689 × 49,911.15
4. Step 4: Simplify right side
   116,478.57x = 8,718,928,882.35
5. Step 5: Solve for x
   x = 8,718,928,882.35/116,478.57
6. Step 6: Final answer
   x = 74,854.36