Finding the Fourth Proportional to 371,499.49, 512,664.78 and 201,734.83

Step by Step Solution

1. Step 1: Write the proportion equation
   371,499.49 : 512,664.78 = 201,734.83 : x
2. Step 2: Convert to fraction form
   371,499.49/512,664.78 = 201,734.83/x
3. Step 3: Cross multiply
   371,499.49x = 512,664.78 × 201,734.83
4. Step 4: Simplify right side
   371,499.49x = 103,422,342,240.29
5. Step 5: Solve for x
   x = 103,422,342,240.29/371,499.49
6. Step 6: Final answer
   x = 278,391.61