Finding the Fourth Proportional to 10,111.74, 15,166.99 and 3,785.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111.74 : 15,166.99 = 3,785.37 : x
2. Step 2: Convert to fraction form
   10,111.74/15,166.99 = 3,785.37/x
3. Step 3: Cross multiply
   10,111.74x = 15,166.99 × 3,785.37
4. Step 4: Simplify right side
   10,111.74x = 57,412,668.94
5. Step 5: Solve for x
   x = 57,412,668.94/10,111.74
6. Step 6: Final answer
   x = 5,677.82