Finding the Fourth Proportional to 214,061.49, 321,291.50 and 108,959.13

Step by Step Solution

1. Step 1: Write the proportion equation
   214,061.49 : 321,291.50 = 108,959.13 : x
2. Step 2: Convert to fraction form
   214,061.49/321,291.50 = 108,959.13/x
3. Step 3: Cross multiply
   214,061.49x = 321,291.50 × 108,959.13
4. Step 4: Simplify right side
   214,061.49x = 35,007,641,771.60
5. Step 5: Solve for x
   x = 35,007,641,771.60/214,061.49
6. Step 6: Final answer
   x = 163,540.12