Finding the Fourth Proportional to 10,196.51, 15,291.82 and 2,801.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.51 : 15,291.82 = 2,801.21 : x
2. Step 2: Convert to fraction form
   10,196.51/15,291.82 = 2,801.21/x
3. Step 3: Cross multiply
   10,196.51x = 15,291.82 × 2,801.21
4. Step 4: Simplify right side
   10,196.51x = 42,835,526.14
5. Step 5: Solve for x
   x = 42,835,526.14/10,196.51
6. Step 6: Final answer
   x = 4,201.00