Finding the Fourth Proportional to 11,858.16, 17,789.78 and 3,538.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,858.16 : 17,789.78 = 3,538.83 : x
2. Step 2: Convert to fraction form
   11,858.16/17,789.78 = 3,538.83/x
3. Step 3: Cross multiply
   11,858.16x = 17,789.78 × 3,538.83
4. Step 4: Simplify right side
   11,858.16x = 62,955,007.16
5. Step 5: Solve for x
   x = 62,955,007.16/11,858.16
6. Step 6: Final answer
   x = 5,309.00