Finding the Fourth Proportional to 13,717.62, 18,930.34 and 7,429.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,717.62 : 18,930.34 = 7,429.98 : x
2. Step 2: Convert to fraction form
   13,717.62/18,930.34 = 7,429.98/x
3. Step 3: Cross multiply
   13,717.62x = 18,930.34 × 7,429.98
4. Step 4: Simplify right side
   13,717.62x = 140,652,047.59
5. Step 5: Solve for x
   x = 140,652,047.59/13,717.62
6. Step 6: Final answer
   x = 10,253.39