Finding the Fourth Proportional to 835,406.10, 1,253,109.15 and 204,326.10

Step by Step Solution

1. Step 1: Write the proportion equation
   835,406.10 : 1,253,109.15 = 204,326.10 : x
2. Step 2: Convert to fraction form
   835,406.10/1,253,109.15 = 204,326.10/x
3. Step 3: Cross multiply
   835,406.10x = 1,253,109.15 × 204,326.10
4. Step 4: Simplify right side
   835,406.10x = 256,042,905,493.82
5. Step 5: Solve for x
   x = 256,042,905,493.82/835,406.10
6. Step 6: Final answer
   x = 306,489.15