Finding the Fourth Proportional to 13,717.34, 18,929.90 and 7,748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,717.34 : 18,929.90 = 7,748.72 : x
2. Step 2: Convert to fraction form
   13,717.34/18,929.90 = 7,748.72/x
3. Step 3: Cross multiply
   13,717.34x = 18,929.90 × 7,748.72
4. Step 4: Simplify right side
   13,717.34x = 146,682,494.73
5. Step 5: Solve for x
   x = 146,682,494.73/13,717.34
6. Step 6: Final answer
   x = 10,693.22