Finding the Fourth Proportional to 11,358.01, 17,022.60 and 5,111.35

Step by Step Solution

1. Step 1: Write the proportion equation
   11,358.01 : 17,022.60 = 5,111.35 : x
2. Step 2: Convert to fraction form
   11,358.01/17,022.60 = 5,111.35/x
3. Step 3: Cross multiply
   11,358.01x = 17,022.60 × 5,111.35
4. Step 4: Simplify right side
   11,358.01x = 87,008,466.51
5. Step 5: Solve for x
   x = 87,008,466.51/11,358.01
6. Step 6: Final answer
   x = 7,660.54