Finding the Fourth Proportional to 404,392.31, 606,566.58 and 123,910.37

Step by Step Solution

1. Step 1: Write the proportion equation
   404,392.31 : 606,566.58 = 123,910.37 : x
2. Step 2: Convert to fraction form
   404,392.31/606,566.58 = 123,910.37/x
3. Step 3: Cross multiply
   404,392.31x = 606,566.58 × 123,910.37
4. Step 4: Simplify right side
   404,392.31x = 75,159,889,357.43
5. Step 5: Solve for x
   x = 75,159,889,357.43/404,392.31
6. Step 6: Final answer
   x = 185,858.85