Finding the Fourth Proportional to 404,411.94, 606,689.22 and 138,110.04

Step by Step Solution

1. Step 1: Write the proportion equation
   404,411.94 : 606,689.22 = 138,110.04 : x
2. Step 2: Convert to fraction form
   404,411.94/606,689.22 = 138,110.04/x
3. Step 3: Cross multiply
   404,411.94x = 606,689.22 × 138,110.04
4. Step 4: Simplify right side
   404,411.94x = 83,789,872,441.77
5. Step 5: Solve for x
   x = 83,789,872,441.77/404,411.94
6. Step 6: Final answer
   x = 207,189.41