Finding the Fourth Proportional to 18,096.67, 24,972.71 and 10,138.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,096.67 : 24,972.71 = 10,138.50 : x
2. Step 2: Convert to fraction form
   18,096.67/24,972.71 = 10,138.50/x
3. Step 3: Cross multiply
   18,096.67x = 24,972.71 × 10,138.50
4. Step 4: Simplify right side
   18,096.67x = 253,185,820.34
5. Step 5: Solve for x
   x = 253,185,820.34/18,096.67
6. Step 6: Final answer
   x = 13,990.74