Finding the Fourth Proportional to 10,900.74, 16,354.30 and 3,505.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.74 : 16,354.30 = 3,505.04 : x
2. Step 2: Convert to fraction form
   10,900.74/16,354.30 = 3,505.04/x
3. Step 3: Cross multiply
   10,900.74x = 16,354.30 × 3,505.04
4. Step 4: Simplify right side
   10,900.74x = 57,322,475.67
5. Step 5: Solve for x
   x = 57,322,475.67/10,900.74
6. Step 6: Final answer
   x = 5,258.59