Finding the Fourth Proportional to 389,111.20, 536,882 and 236,146

Step by Step Solution

1. Step 1: Write the proportion equation
   389,111.20 : 536,882 = 236,146 : x
2. Step 2: Convert to fraction form
   389,111.20/536,882 = 236,146/x
3. Step 3: Cross multiply
   389,111.20x = 536,882 × 236,146
4. Step 4: Simplify right side
   389,111.20x = 126,782,536,772
5. Step 5: Solve for x
   x = 126,782,536,772/389,111.20
6. Step 6: Final answer
   x = 325,825.98