Finding the Fourth Proportional to 11,081.60, 16,610.72 and 3,684.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,081.60 : 16,610.72 = 3,684.07 : x
2. Step 2: Convert to fraction form
   11,081.60/16,610.72 = 3,684.07/x
3. Step 3: Cross multiply
   11,081.60x = 16,610.72 × 3,684.07
4. Step 4: Simplify right side
   11,081.60x = 61,194,953.76
5. Step 5: Solve for x
   x = 61,194,953.76/11,081.60
6. Step 6: Final answer
   x = 5,522.21