Finding the Fourth Proportional to 404,722.32, 606,977.72 and 120,336.29

Step by Step Solution

1. Step 1: Write the proportion equation
   404,722.32 : 606,977.72 = 120,336.29 : x
2. Step 2: Convert to fraction form
   404,722.32/606,977.72 = 120,336.29/x
3. Step 3: Cross multiply
   404,722.32x = 606,977.72 × 120,336.29
4. Step 4: Simplify right side
   404,722.32x = 73,041,446,937.46
5. Step 5: Solve for x
   x = 73,041,446,937.46/404,722.32
6. Step 6: Final answer
   x = 180,472.99