Finding the Fourth Proportional to 123,642.38, 185,461.56 and 39,401.42

Step by Step Solution

1. Step 1: Write the proportion equation
   123,642.38 : 185,461.56 = 39,401.42 : x
2. Step 2: Convert to fraction form
   123,642.38/185,461.56 = 39,401.42/x
3. Step 3: Cross multiply
   123,642.38x = 185,461.56 × 39,401.42
4. Step 4: Simplify right side
   123,642.38x = 7,307,448,819.42
5. Step 5: Solve for x
   x = 7,307,448,819.42/123,642.38
6. Step 6: Final answer
   x = 59,101.49