Finding the Fourth Proportional to 404,388.31, 606,560.58 and 123,906.37

Step by Step Solution

1. Step 1: Write the proportion equation
   404,388.31 : 606,560.58 = 123,906.37 : x
2. Step 2: Convert to fraction form
   404,388.31/606,560.58 = 123,906.37/x
3. Step 3: Cross multiply
   404,388.31x = 606,560.58 × 123,906.37
4. Step 4: Simplify right side
   404,388.31x = 75,156,719,652.89
5. Step 5: Solve for x
   x = 75,156,719,652.89/404,388.31
6. Step 6: Final answer
   x = 185,852.85