Finding the Fourth Proportional to 404,778.14, 607,056.30 and 152,039.10

Step by Step Solution

1. Step 1: Write the proportion equation
   404,778.14 : 607,056.30 = 152,039.10 : x
2. Step 2: Convert to fraction form
   404,778.14/607,056.30 = 152,039.10/x
3. Step 3: Cross multiply
   404,778.14x = 607,056.30 × 152,039.10
4. Step 4: Simplify right side
   404,778.14x = 92,296,293,501.33
5. Step 5: Solve for x
   x = 92,296,293,501.33/404,778.14
6. Step 6: Final answer
   x = 228,016.99