Finding the Fourth Proportional to 404,588.86, 606,689.46 and 191,179.17

Step by Step Solution

1. Step 1: Write the proportion equation
   404,588.86 : 606,689.46 = 191,179.17 : x
2. Step 2: Convert to fraction form
   404,588.86/606,689.46 = 191,179.17/x
3. Step 3: Cross multiply
   404,588.86x = 606,689.46 × 191,179.17
4. Step 4: Simplify right side
   404,588.86x = 115,986,387,410.55
5. Step 5: Solve for x
   x = 115,986,387,410.55/404,588.86
6. Step 6: Final answer
   x = 286,677.17