Finding the Fourth Proportional to 10,196.39, 15,291.65 and 2,801.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.39 : 15,291.65 = 2,801.09 : x
2. Step 2: Convert to fraction form
   10,196.39/15,291.65 = 2,801.09/x
3. Step 3: Cross multiply
   10,196.39x = 15,291.65 × 2,801.09
4. Step 4: Simplify right side
   10,196.39x = 42,833,273.89
5. Step 5: Solve for x
   x = 42,833,273.89/10,196.39
6. Step 6: Final answer
   x = 4,200.83