Finding the Fourth Proportional to 143,073.56, 214,648.72 and 49,579.31

Step by Step Solution

1. Step 1: Write the proportion equation
   143,073.56 : 214,648.72 = 49,579.31 : x
2. Step 2: Convert to fraction form
   143,073.56/214,648.72 = 49,579.31/x
3. Step 3: Cross multiply
   143,073.56x = 214,648.72 × 49,579.31
4. Step 4: Simplify right side
   143,073.56x = 10,642,135,842.66
5. Step 5: Solve for x
   x = 10,642,135,842.66/143,073.56
6. Step 6: Final answer
   x = 74,382.27