Finding the Fourth Proportional to 18,123.30, 25,030.42 and 12,475.37

Step by Step Solution

1. Step 1: Write the proportion equation
   18,123.30 : 25,030.42 = 12,475.37 : x
2. Step 2: Convert to fraction form
   18,123.30/25,030.42 = 12,475.37/x
3. Step 3: Cross multiply
   18,123.30x = 25,030.42 × 12,475.37
4. Step 4: Simplify right side
   18,123.30x = 312,263,782.14
5. Step 5: Solve for x
   x = 312,263,782.14/18,123.30
6. Step 6: Final answer
   x = 17,229.96