Finding the Fourth Proportional to 388,453.91, 536,093.33 and 235,498.55

Step by Step Solution

1. Step 1: Write the proportion equation
   388,453.91 : 536,093.33 = 235,498.55 : x
2. Step 2: Convert to fraction form
   388,453.91/536,093.33 = 235,498.55/x
3. Step 3: Cross multiply
   388,453.91x = 536,093.33 × 235,498.55
4. Step 4: Simplify right side
   388,453.91x = 126,249,198,021.71
5. Step 5: Solve for x
   x = 126,249,198,021.71/388,453.91
6. Step 6: Final answer
   x = 325,004.32