Finding the Fourth Proportional to 13,341.72, 18,413.86 and 7,755.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,341.72 : 18,413.86 = 7,755.96 : x
2. Step 2: Convert to fraction form
   13,341.72/18,413.86 = 7,755.96/x
3. Step 3: Cross multiply
   13,341.72x = 18,413.86 × 7,755.96
4. Step 4: Simplify right side
   13,341.72x = 142,817,161.61
5. Step 5: Solve for x
   x = 142,817,161.61/13,341.72
6. Step 6: Final answer
   x = 10,704.55