Finding the Fourth Proportional to 18,096.87, 24,973.59 and 10,139.16

Step by Step Solution

1. Step 1: Write the proportion equation
   18,096.87 : 24,973.59 = 10,139.16 : x
2. Step 2: Convert to fraction form
   18,096.87/24,973.59 = 10,139.16/x
3. Step 3: Cross multiply
   18,096.87x = 24,973.59 × 10,139.16
4. Step 4: Simplify right side
   18,096.87x = 253,211,224.78
5. Step 5: Solve for x
   x = 253,211,224.78/18,096.87
6. Step 6: Final answer
   x = 13,991.99