Finding the Fourth Proportional to 389,316.72, 582,919.83 and 201,934.56

Step by Step Solution

1. Step 1: Write the proportion equation
   389,316.72 : 582,919.83 = 201,934.56 : x
2. Step 2: Convert to fraction form
   389,316.72/582,919.83 = 201,934.56/x
3. Step 3: Cross multiply
   389,316.72x = 582,919.83 × 201,934.56
4. Step 4: Simplify right side
   389,316.72x = 117,711,659,386.33
5. Step 5: Solve for x
   x = 117,711,659,386.33/389,316.72
6. Step 6: Final answer
   x = 302,354.49