Finding the Fourth Proportional to 13,682.50, 18,881.82 and 7,714.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,682.50 : 18,881.82 = 7,714.13 : x
2. Step 2: Convert to fraction form
   13,682.50/18,881.82 = 7,714.13/x
3. Step 3: Cross multiply
   13,682.50x = 18,881.82 × 7,714.13
4. Step 4: Simplify right side
   13,682.50x = 145,656,719.71
5. Step 5: Solve for x
   x = 145,656,719.71/13,682.50
6. Step 6: Final answer
   x = 10,645.48