Finding the Fourth Proportional to 11,107.86, 16,665.12 and 3,316.67

Step by Step Solution

1. Step 1: Write the proportion equation
   11,107.86 : 16,665.12 = 3,316.67 : x
2. Step 2: Convert to fraction form
   11,107.86/16,665.12 = 3,316.67/x
3. Step 3: Cross multiply
   11,107.86x = 16,665.12 × 3,316.67
4. Step 4: Simplify right side
   11,107.86x = 55,272,703.55
5. Step 5: Solve for x
   x = 55,272,703.55/11,107.86
6. Step 6: Final answer
   x = 4,976.00