Finding the Fourth Proportional to 404,144.72, 606,041.24 and 115,892.88

Step by Step Solution

1. Step 1: Write the proportion equation
   404,144.72 : 606,041.24 = 115,892.88 : x
2. Step 2: Convert to fraction form
   404,144.72/606,041.24 = 115,892.88/x
3. Step 3: Cross multiply
   404,144.72x = 606,041.24 × 115,892.88
4. Step 4: Simplify right side
   404,144.72x = 70,235,864,702.37
5. Step 5: Solve for x
   x = 70,235,864,702.37/404,144.72
6. Step 6: Final answer
   x = 173,788.90