Finding the Fourth Proportional to 11,111.60, 16,668.29 and 3,716.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.60 : 16,668.29 = 3,716.10 : x
2. Step 2: Convert to fraction form
   11,111.60/16,668.29 = 3,716.10/x
3. Step 3: Cross multiply
   11,111.60x = 16,668.29 × 3,716.10
4. Step 4: Simplify right side
   11,111.60x = 61,941,013.89
5. Step 5: Solve for x
   x = 61,941,013.89/11,111.60
6. Step 6: Final answer
   x = 5,574.45