Finding the Fourth Proportional to 11,413.57, 15,742.39 and 7,630.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,413.57 : 15,742.39 = 7,630.09 : x
2. Step 2: Convert to fraction form
   11,413.57/15,742.39 = 7,630.09/x
3. Step 3: Cross multiply
   11,413.57x = 15,742.39 × 7,630.09
4. Step 4: Simplify right side
   11,413.57x = 120,115,852.52
5. Step 5: Solve for x
   x = 120,115,852.52/11,413.57
6. Step 6: Final answer
   x = 10,523.95