Finding the Fourth Proportional to 11,111.89, 16,668.70 and 3,716.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.89 : 16,668.70 = 3,716.38 : x
2. Step 2: Convert to fraction form
   11,111.89/16,668.70 = 3,716.38/x
3. Step 3: Cross multiply
   11,111.89x = 16,668.70 × 3,716.38
4. Step 4: Simplify right side
   11,111.89x = 61,947,223.31
5. Step 5: Solve for x
   x = 61,947,223.31/11,111.89
6. Step 6: Final answer
   x = 5,574.86