Finding the Fourth Proportional to 249,694.36, 374,578.82 and 91,910.82

Step by Step Solution

1. Step 1: Write the proportion equation
   249,694.36 : 374,578.82 = 91,910.82 : x
2. Step 2: Convert to fraction form
   249,694.36/374,578.82 = 91,910.82/x
3. Step 3: Cross multiply
   249,694.36x = 374,578.82 × 91,910.82
4. Step 4: Simplify right side
   249,694.36x = 34,427,846,500.83
5. Step 5: Solve for x
   x = 34,427,846,500.83/249,694.36
6. Step 6: Final answer
   x = 137,879.95