Finding the Fourth Proportional to 317,111.22, 437,610.15 and 173,870.91

Step by Step Solution

1. Step 1: Write the proportion equation
   317,111.22 : 437,610.15 = 173,870.91 : x
2. Step 2: Convert to fraction form
   317,111.22/437,610.15 = 173,870.91/x
3. Step 3: Cross multiply
   317,111.22x = 437,610.15 × 173,870.91
4. Step 4: Simplify right side
   317,111.22x = 76,087,675,005.74
5. Step 5: Solve for x
   x = 76,087,675,005.74/317,111.22
6. Step 6: Final answer
   x = 239,940.03