Finding the Fourth Proportional to 10,902.85, 16,356.90 and 3,508.00

Step by Step Solution

1. Step 1: Write the proportion equation
   10,902.85 : 16,356.90 = 3,508.00 : x
2. Step 2: Convert to fraction form
   10,902.85/16,356.90 = 3,508.00/x
3. Step 3: Cross multiply
   10,902.85x = 16,356.90 × 3,508.00
4. Step 4: Simplify right side
   10,902.85x = 57,379,923.42
5. Step 5: Solve for x
   x = 57,379,923.42/10,902.85
6. Step 6: Final answer
   x = 5,262.84