Finding the Fourth Proportional to 10,109.12, 15,166.22 and 3,869.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,109.12 : 15,166.22 = 3,869.63 : x
2. Step 2: Convert to fraction form
   10,109.12/15,166.22 = 3,869.63/x
3. Step 3: Cross multiply
   10,109.12x = 15,166.22 × 3,869.63
4. Step 4: Simplify right side
   10,109.12x = 58,687,564.72
5. Step 5: Solve for x
   x = 58,687,564.72/10,109.12
6. Step 6: Final answer
   x = 5,805.41