Finding the Fourth Proportional to 10,129.89, 15,201.62 and 3,556.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,129.89 : 15,201.62 = 3,556.10 : x
2. Step 2: Convert to fraction form
   10,129.89/15,201.62 = 3,556.10/x
3. Step 3: Cross multiply
   10,129.89x = 15,201.62 × 3,556.10
4. Step 4: Simplify right side
   10,129.89x = 54,058,413.76
5. Step 5: Solve for x
   x = 54,058,413.76/10,129.89
6. Step 6: Final answer
   x = 5,336.53