Finding the Fourth Proportional to 8,958.72, 13,436.64 and 2,802.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,958.72 : 13,436.64 = 2,802.72 : x
2. Step 2: Convert to fraction form
   8,958.72/13,436.64 = 2,802.72/x
3. Step 3: Cross multiply
   8,958.72x = 13,436.64 × 2,802.72
4. Step 4: Simplify right side
   8,958.72x = 37,659,139.66
5. Step 5: Solve for x
   x = 37,659,139.66/8,958.72
6. Step 6: Final answer
   x = 4,203.63