Finding the Fourth Proportional to 143,078.68, 214,656.90 and 49,591.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,078.68 : 214,656.90 = 49,591.72 : x
2. Step 2: Convert to fraction form
   143,078.68/214,656.90 = 49,591.72/x
3. Step 3: Cross multiply
   143,078.68x = 214,656.90 × 49,591.72
4. Step 4: Simplify right side
   143,078.68x = 10,645,204,880.87
5. Step 5: Solve for x
   x = 10,645,204,880.87/143,078.68
6. Step 6: Final answer
   x = 74,401.06