Finding the Fourth Proportional to 389,607.96, 584,334.18 and 123,323.16

Step by Step Solution

1. Step 1: Write the proportion equation
   389,607.96 : 584,334.18 = 123,323.16 : x
2. Step 2: Convert to fraction form
   389,607.96/584,334.18 = 123,323.16/x
3. Step 3: Cross multiply
   389,607.96x = 584,334.18 × 123,323.16
4. Step 4: Simplify right side
   389,607.96x = 72,061,937,573.61
5. Step 5: Solve for x
   x = 72,061,937,573.61/389,607.96
6. Step 6: Final answer
   x = 184,960.13