Finding the Fourth Proportional to 11,111.06, 16,668.93 and 4,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.06 : 16,668.93 = 4,185.50 : x
2. Step 2: Convert to fraction form
   11,111.06/16,668.93 = 4,185.50/x
3. Step 3: Cross multiply
   11,111.06x = 16,668.93 × 4,185.50
4. Step 4: Simplify right side
   11,111.06x = 69,767,806.52
5. Step 5: Solve for x
   x = 69,767,806.52/11,111.06
6. Step 6: Final answer
   x = 6,279.13