Finding the Fourth Proportional to 404,380.07, 606,647.86 and 155,042.63

Step by Step Solution

1. Step 1: Write the proportion equation
   404,380.07 : 606,647.86 = 155,042.63 : x
2. Step 2: Convert to fraction form
   404,380.07/606,647.86 = 155,042.63/x
3. Step 3: Cross multiply
   404,380.07x = 606,647.86 × 155,042.63
4. Step 4: Simplify right side
   404,380.07x = 94,056,276,665.03
5. Step 5: Solve for x
   x = 94,056,276,665.03/404,380.07
6. Step 6: Final answer
   x = 232,593.75