Finding the Fourth Proportional to 123,383.60, 185,149.10 and 113,345.18

Step by Step Solution

1. Step 1: Write the proportion equation
   123,383.60 : 185,149.10 = 113,345.18 : x
2. Step 2: Convert to fraction form
   123,383.60/185,149.10 = 113,345.18/x
3. Step 3: Cross multiply
   123,383.60x = 185,149.10 × 113,345.18
4. Step 4: Simplify right side
   123,383.60x = 20,985,757,423.96
5. Step 5: Solve for x
   x = 20,985,757,423.96/123,383.60
6. Step 6: Final answer
   x = 170,085.48