Finding the Fourth Proportional to 389,594.96, 584,314.68 and 123,310.16

Step by Step Solution

1. Step 1: Write the proportion equation
   389,594.96 : 584,314.68 = 123,310.16 : x
2. Step 2: Convert to fraction form
   389,594.96/584,314.68 = 123,310.16/x
3. Step 3: Cross multiply
   389,594.96x = 584,314.68 × 123,310.16
4. Step 4: Simplify right side
   389,594.96x = 72,051,936,681.15
5. Step 5: Solve for x
   x = 72,051,936,681.15/389,594.96
6. Step 6: Final answer
   x = 184,940.63