Finding the Fourth Proportional to 143,921.48, 215,880.71 and 49,150.58

Step by Step Solution

1. Step 1: Write the proportion equation
   143,921.48 : 215,880.71 = 49,150.58 : x
2. Step 2: Convert to fraction form
   143,921.48/215,880.71 = 49,150.58/x
3. Step 3: Cross multiply
   143,921.48x = 215,880.71 × 49,150.58
4. Step 4: Simplify right side
   143,921.48x = 10,610,662,401.26
5. Step 5: Solve for x
   x = 10,610,662,401.26/143,921.48
6. Step 6: Final answer
   x = 73,725.36