Finding the Fourth Proportional to 10,900.85, 16,353.90 and 3,506.00

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.85 : 16,353.90 = 3,506.00 : x
2. Step 2: Convert to fraction form
   10,900.85/16,353.90 = 3,506.00/x
3. Step 3: Cross multiply
   10,900.85x = 16,353.90 × 3,506.00
4. Step 4: Simplify right side
   10,900.85x = 57,336,691.63
5. Step 5: Solve for x
   x = 57,336,691.63/10,900.85
6. Step 6: Final answer
   x = 5,259.84