Finding the Fourth Proportional to 209,828.83, 314,836.29 and 109,965.31

Step by Step Solution

1. Step 1: Write the proportion equation
   209,828.83 : 314,836.29 = 109,965.31 : x
2. Step 2: Convert to fraction form
   209,828.83/314,836.29 = 109,965.31/x
3. Step 3: Cross multiply
   209,828.83x = 314,836.29 × 109,965.31
4. Step 4: Simplify right side
   209,828.83x = 34,621,070,229.10
5. Step 5: Solve for x
   x = 34,621,070,229.10/209,828.83
6. Step 6: Final answer
   x = 164,996.73