Finding the Fourth Proportional to 231,498.52, 348,982.91 and 216,067.36

Step by Step Solution

1. Step 1: Write the proportion equation
   231,498.52 : 348,982.91 = 216,067.36 : x
2. Step 2: Convert to fraction form
   231,498.52/348,982.91 = 216,067.36/x
3. Step 3: Cross multiply
   231,498.52x = 348,982.91 × 216,067.36
4. Step 4: Simplify right side
   231,498.52x = 75,403,816,048.82
5. Step 5: Solve for x
   x = 75,403,816,048.82/231,498.52
6. Step 6: Final answer
   x = 325,720.51