Finding the Fourth Proportional to 219,040.56, 302,042.59 and 173,019.31

Step by Step Solution

1. Step 1: Write the proportion equation
   219,040.56 : 302,042.59 = 173,019.31 : x
2. Step 2: Convert to fraction form
   219,040.56/302,042.59 = 173,019.31/x
3. Step 3: Cross multiply
   219,040.56x = 302,042.59 × 173,019.31
4. Step 4: Simplify right side
   219,040.56x = 52,259,199,324.76
5. Step 5: Solve for x
   x = 52,259,199,324.76/219,040.56
6. Step 6: Final answer
   x = 238,582.29