Finding the Fourth Proportional to 13,284.14, 18,332.06 and 7,618.91

Step by Step Solution

1. Step 1: Write the proportion equation
   13,284.14 : 18,332.06 = 7,618.91 : x
2. Step 2: Convert to fraction form
   13,284.14/18,332.06 = 7,618.91/x
3. Step 3: Cross multiply
   13,284.14x = 18,332.06 × 7,618.91
4. Step 4: Simplify right side
   13,284.14x = 139,670,185.50
5. Step 5: Solve for x
   x = 139,670,185.50/13,284.14
6. Step 6: Final answer
   x = 10,514.06