Finding the Fourth Proportional to 11,618.71, 16,034.15 and 7,145.08

Step by Step Solution

1. Step 1: Write the proportion equation
   11,618.71 : 16,034.15 = 7,145.08 : x
2. Step 2: Convert to fraction form
   11,618.71/16,034.15 = 7,145.08/x
3. Step 3: Cross multiply
   11,618.71x = 16,034.15 × 7,145.08
4. Step 4: Simplify right side
   11,618.71x = 114,565,262.26
5. Step 5: Solve for x
   x = 114,565,262.26/11,618.71
6. Step 6: Final answer
   x = 9,860.41