Finding the Fourth Proportional to 404,895.10, 607,601.85 and 236,415.10

Step by Step Solution

1. Step 1: Write the proportion equation
   404,895.10 : 607,601.85 = 236,415.10 : x
2. Step 2: Convert to fraction form
   404,895.10/607,601.85 = 236,415.10/x
3. Step 3: Cross multiply
   404,895.10x = 607,601.85 × 236,415.10
4. Step 4: Simplify right side
   404,895.10x = 143,646,252,127.94
5. Step 5: Solve for x
   x = 143,646,252,127.94/404,895.10
6. Step 6: Final answer
   x = 354,773.99