Finding the Fourth Proportional to 13,123.54, 19,679.38 and 3,761.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,123.54 : 19,679.38 = 3,761.42 : x
2. Step 2: Convert to fraction form
   13,123.54/19,679.38 = 3,761.42/x
3. Step 3: Cross multiply
   13,123.54x = 19,679.38 × 3,761.42
4. Step 4: Simplify right side
   13,123.54x = 74,022,413.52
5. Step 5: Solve for x
   x = 74,022,413.52/13,123.54
6. Step 6: Final answer
   x = 5,640.43