Finding the Fourth Proportional to 200,363.30, 300,067.91 and 115,945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,363.30 : 300,067.91 = 115,945.50 : x
2. Step 2: Convert to fraction form
   200,363.30/300,067.91 = 115,945.50/x
3. Step 3: Cross multiply
   200,363.30x = 300,067.91 × 115,945.50
4. Step 4: Simplify right side
   200,363.30x = 34,791,523,279.18
5. Step 5: Solve for x
   x = 34,791,523,279.18/200,363.30
6. Step 6: Final answer
   x = 173,642.20