Finding the Fourth Proportional to 8,958.44, 13,429.02 and 3,111.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,958.44 : 13,429.02 = 3,111.32 : x
2. Step 2: Convert to fraction form
   8,958.44/13,429.02 = 3,111.32/x
3. Step 3: Cross multiply
   8,958.44x = 13,429.02 × 3,111.32
4. Step 4: Simplify right side
   8,958.44x = 41,781,978.51
5. Step 5: Solve for x
   x = 41,781,978.51/8,958.44
6. Step 6: Final answer
   x = 4,663.98