Finding the Fourth Proportional to 13,103.89, 18,082.46 and 7,438.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.89 : 18,082.46 = 7,438.75 : x
2. Step 2: Convert to fraction form
   13,103.89/18,082.46 = 7,438.75/x
3. Step 3: Cross multiply
   13,103.89x = 18,082.46 × 7,438.75
4. Step 4: Simplify right side
   13,103.89x = 134,510,872.72
5. Step 5: Solve for x
   x = 134,510,872.72/13,103.89
6. Step 6: Final answer
   x = 10,264.96