Finding the Fourth Proportional to 123,383.57, 185,149.09 and 113,345.24

Step by Step Solution

1. Step 1: Write the proportion equation
   123,383.57 : 185,149.09 = 113,345.24 : x
2. Step 2: Convert to fraction form
   123,383.57/185,149.09 = 113,345.24/x
3. Step 3: Cross multiply
   123,383.57x = 185,149.09 × 113,345.24
4. Step 4: Simplify right side
   123,383.57x = 20,985,768,041.83
5. Step 5: Solve for x
   x = 20,985,768,041.83/123,383.57
6. Step 6: Final answer
   x = 170,085.60