Finding the Fourth Proportional to 262,513.59, 391,721.88 and 234,238.92

Step by Step Solution

1. Step 1: Write the proportion equation
   262,513.59 : 391,721.88 = 234,238.92 : x
2. Step 2: Convert to fraction form
   262,513.59/391,721.88 = 234,238.92/x
3. Step 3: Cross multiply
   262,513.59x = 391,721.88 × 234,238.92
4. Step 4: Simplify right side
   262,513.59x = 91,756,510,111.57
5. Step 5: Solve for x
   x = 91,756,510,111.57/262,513.59
6. Step 6: Final answer
   x = 349,530.51