Finding the Fourth Proportional to 17,294.88, 25,903.42 and 12,123.84

Step by Step Solution

1. Step 1: Write the proportion equation
   17,294.88 : 25,903.42 = 12,123.84 : x
2. Step 2: Convert to fraction form
   17,294.88/25,903.42 = 12,123.84/x
3. Step 3: Cross multiply
   17,294.88x = 25,903.42 × 12,123.84
4. Step 4: Simplify right side
   17,294.88x = 314,048,919.53
5. Step 5: Solve for x
   x = 314,048,919.53/17,294.88
6. Step 6: Final answer
   x = 18,158.49