Finding the Fourth Proportional to 11,147.16, 16,721.34 and 3,751.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,147.16 : 16,721.34 = 3,751.86 : x
2. Step 2: Convert to fraction form
   11,147.16/16,721.34 = 3,751.86/x
3. Step 3: Cross multiply
   11,147.16x = 16,721.34 × 3,751.86
4. Step 4: Simplify right side
   11,147.16x = 62,736,126.69
5. Step 5: Solve for x
   x = 62,736,126.69/11,147.16
6. Step 6: Final answer
   x = 5,627.99