Finding the Fourth Proportional to 404,136.38, 606,228.86 and 123,656.06

Step by Step Solution

1. Step 1: Write the proportion equation
   404,136.38 : 606,228.86 = 123,656.06 : x
2. Step 2: Convert to fraction form
   404,136.38/606,228.86 = 123,656.06/x
3. Step 3: Cross multiply
   404,136.38x = 606,228.86 × 123,656.06
4. Step 4: Simplify right side
   404,136.38x = 74,963,869,563.89
5. Step 5: Solve for x
   x = 74,963,869,563.89/404,136.38
6. Step 6: Final answer
   x = 185,491.52