Finding the Fourth Proportional to 11,051.89, 16,580.93 and 3,661.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,051.89 : 16,580.93 = 3,661.55 : x
2. Step 2: Convert to fraction form
   11,051.89/16,580.93 = 3,661.55/x
3. Step 3: Cross multiply
   11,051.89x = 16,580.93 × 3,661.55
4. Step 4: Simplify right side
   11,051.89x = 60,711,904.24
5. Step 5: Solve for x
   x = 60,711,904.24/11,051.89
6. Step 6: Final answer
   x = 5,493.35