Finding the Fourth Proportional to 10,188.72, 15,282.72 and 2,793.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,188.72 : 15,282.72 = 2,793.06 : x
2. Step 2: Convert to fraction form
   10,188.72/15,282.72 = 2,793.06/x
3. Step 3: Cross multiply
   10,188.72x = 15,282.72 × 2,793.06
4. Step 4: Simplify right side
   10,188.72x = 42,685,553.92
5. Step 5: Solve for x
   x = 42,685,553.92/10,188.72
6. Step 6: Final answer
   x = 4,189.49