Finding the Fourth Proportional to 10,115.10, 13,952.81 and 7,873.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,115.10 : 13,952.81 = 7,873.43 : x
2. Step 2: Convert to fraction form
   10,115.10/13,952.81 = 7,873.43/x
3. Step 3: Cross multiply
   10,115.10x = 13,952.81 × 7,873.43
4. Step 4: Simplify right side
   10,115.10x = 109,856,422.76
5. Step 5: Solve for x
   x = 109,856,422.76/10,115.10
6. Step 6: Final answer
   x = 10,860.64