Finding the Fourth Proportional to 10,196.48, 15,292.18 and 2,800.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.48 : 15,292.18 = 2,800.57 : x
2. Step 2: Convert to fraction form
   10,196.48/15,292.18 = 2,800.57/x
3. Step 3: Cross multiply
   10,196.48x = 15,292.18 × 2,800.57
4. Step 4: Simplify right side
   10,196.48x = 42,826,820.54
5. Step 5: Solve for x
   x = 42,826,820.54/10,196.48
6. Step 6: Final answer
   x = 4,200.16