Finding the Fourth Proportional to 10,900.56, 16,351.15 and 3,505.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.56 : 16,351.15 = 3,505.77 : x
2. Step 2: Convert to fraction form
   10,900.56/16,351.15 = 3,505.77/x
3. Step 3: Cross multiply
   10,900.56x = 16,351.15 × 3,505.77
4. Step 4: Simplify right side
   10,900.56x = 57,323,371.14
5. Step 5: Solve for x
   x = 57,323,371.14/10,900.56
6. Step 6: Final answer
   x = 5,258.75