Finding the Fourth Proportional to 18,621.15, 25,697.14 and 10,123.27

Step by Step Solution

1. Step 1: Write the proportion equation
   18,621.15 : 25,697.14 = 10,123.27 : x
2. Step 2: Convert to fraction form
   18,621.15/25,697.14 = 10,123.27/x
3. Step 3: Cross multiply
   18,621.15x = 25,697.14 × 10,123.27
4. Step 4: Simplify right side
   18,621.15x = 260,139,086.45
5. Step 5: Solve for x
   x = 260,139,086.45/18,621.15
6. Step 6: Final answer
   x = 13,970.09