Finding the Fourth Proportional to 11,002.76, 16,506.15 and 4,429.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,002.76 : 16,506.15 = 4,429.60 : x
2. Step 2: Convert to fraction form
   11,002.76/16,506.15 = 4,429.60/x
3. Step 3: Cross multiply
   11,002.76x = 16,506.15 × 4,429.60
4. Step 4: Simplify right side
   11,002.76x = 73,115,642.04
5. Step 5: Solve for x
   x = 73,115,642.04/11,002.76
6. Step 6: Final answer
   x = 6,645.21