Finding the Fourth Proportional to 11,002.14, 16,499.25 and 3,980.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,002.14 : 16,499.25 = 3,980.34 : x
2. Step 2: Convert to fraction form
   11,002.14/16,499.25 = 3,980.34/x
3. Step 3: Cross multiply
   11,002.14x = 16,499.25 × 3,980.34
4. Step 4: Simplify right side
   11,002.14x = 65,672,624.75
5. Step 5: Solve for x
   x = 65,672,624.75/11,002.14
6. Step 6: Final answer
   x = 5,969.08