Finding the Fourth Proportional to 613,494.27, 846,402.89 and 355,230.22

Step by Step Solution

1. Step 1: Write the proportion equation
   613,494.27 : 846,402.89 = 355,230.22 : x
2. Step 2: Convert to fraction form
   613,494.27/846,402.89 = 355,230.22/x
3. Step 3: Cross multiply
   613,494.27x = 846,402.89 × 355,230.22
4. Step 4: Simplify right side
   613,494.27x = 300,667,884,823.34
5. Step 5: Solve for x
   x = 300,667,884,823.34/613,494.27
6. Step 6: Final answer
   x = 490,090.78