Finding the Fourth Proportional to 209,843.83, 314,858.79 and 109,980.31

Step by Step Solution

1. Step 1: Write the proportion equation
   209,843.83 : 314,858.79 = 109,980.31 : x
2. Step 2: Convert to fraction form
   209,843.83/314,858.79 = 109,980.31/x
3. Step 3: Cross multiply
   209,843.83x = 314,858.79 × 109,980.31
4. Step 4: Simplify right side
   209,843.83x = 34,628,267,330.42
5. Step 5: Solve for x
   x = 34,628,267,330.42/209,843.83
6. Step 6: Final answer
   x = 165,019.23