Finding the Fourth Proportional to 12,408.96, 17,123.90 and 7,104.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,408.96 : 17,123.90 = 7,104.27 : x
2. Step 2: Convert to fraction form
   12,408.96/17,123.90 = 7,104.27/x
3. Step 3: Cross multiply
   12,408.96x = 17,123.90 × 7,104.27
4. Step 4: Simplify right side
   12,408.96x = 121,652,773.53
5. Step 5: Solve for x
   x = 121,652,773.53/12,408.96
6. Step 6: Final answer
   x = 9,803.62