Finding the Fourth Proportional to 123,209.34, 184,786.13 and 56,585.42

Step by Step Solution

1. Step 1: Write the proportion equation
   123,209.34 : 184,786.13 = 56,585.42 : x
2. Step 2: Convert to fraction form
   123,209.34/184,786.13 = 56,585.42/x
3. Step 3: Cross multiply
   123,209.34x = 184,786.13 × 56,585.42
4. Step 4: Simplify right side
   123,209.34x = 10,456,200,493.30
5. Step 5: Solve for x
   x = 10,456,200,493.30/123,209.34
6. Step 6: Final answer
   x = 84,865.32