Finding the Fourth Proportional to 11,002.42, 16,504.59 and 5,155.90

Step by Step Solution

1. Step 1: Write the proportion equation
   11,002.42 : 16,504.59 = 5,155.90 : x
2. Step 2: Convert to fraction form
   11,002.42/16,504.59 = 5,155.90/x
3. Step 3: Cross multiply
   11,002.42x = 16,504.59 × 5,155.90
4. Step 4: Simplify right side
   11,002.42x = 85,096,015.58
5. Step 5: Solve for x
   x = 85,096,015.58/11,002.42
6. Step 6: Final answer
   x = 7,734.30