Finding the Fourth Proportional to 11,004.60, 16,508.52 and 3,985.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,004.60 : 16,508.52 = 3,985.12 : x
2. Step 2: Convert to fraction form
   11,004.60/16,508.52 = 3,985.12/x
3. Step 3: Cross multiply
   11,004.60x = 16,508.52 × 3,985.12
4. Step 4: Simplify right side
   11,004.60x = 65,788,433.22
5. Step 5: Solve for x
   x = 65,788,433.22/11,004.60
6. Step 6: Final answer
   x = 5,978.27