Finding the Fourth Proportional to 13,379.87, 18,464.01 and 7,714.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,379.87 : 18,464.01 = 7,714.62 : x
2. Step 2: Convert to fraction form
   13,379.87/18,464.01 = 7,714.62/x
3. Step 3: Cross multiply
   13,379.87x = 18,464.01 × 7,714.62
4. Step 4: Simplify right side
   13,379.87x = 142,442,820.83
5. Step 5: Solve for x
   x = 142,442,820.83/13,379.87
6. Step 6: Final answer
   x = 10,646.06