Finding the Fourth Proportional to 11,109.54, 16,665.92 and 3,711.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,109.54 : 16,665.92 = 3,711.80 : x
2. Step 2: Convert to fraction form
   11,109.54/16,665.92 = 3,711.80/x
3. Step 3: Cross multiply
   11,109.54x = 16,665.92 × 3,711.80
4. Step 4: Simplify right side
   11,109.54x = 61,860,561.86
5. Step 5: Solve for x
   x = 61,860,561.86/11,109.54
6. Step 6: Final answer
   x = 5,568.24