Finding the Fourth Proportional to 10,196.80, 15,295.21 and 2,801.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.80 : 15,295.21 = 2,801.30 : x
2. Step 2: Convert to fraction form
   10,196.80/15,295.21 = 2,801.30/x
3. Step 3: Cross multiply
   10,196.80x = 15,295.21 × 2,801.30
4. Step 4: Simplify right side
   10,196.80x = 42,846,388.29
5. Step 5: Solve for x
   x = 42,846,388.29/10,196.80
6. Step 6: Final answer
   x = 4,201.95