Finding the Fourth Proportional to 11,002.79, 16,500.74 and 3,605.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,002.79 : 16,500.74 = 3,605.60 : x
2. Step 2: Convert to fraction form
   11,002.79/16,500.74 = 3,605.60/x
3. Step 3: Cross multiply
   11,002.79x = 16,500.74 × 3,605.60
4. Step 4: Simplify right side
   11,002.79x = 59,495,091.37
5. Step 5: Solve for x
   x = 59,495,091.37/11,002.79
6. Step 6: Final answer
   x = 5,407.27