Finding the Fourth Proportional to 6,007.31, 9,012.17 and 2,112.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,007.31 : 9,012.17 = 2,112.02 : x
2. Step 2: Convert to fraction form
   6,007.31/9,012.17 = 2,112.02/x
3. Step 3: Cross multiply
   6,007.31x = 9,012.17 × 2,112.02
4. Step 4: Simplify right side
   6,007.31x = 19,033,843.50
5. Step 5: Solve for x
   x = 19,033,843.50/6,007.31
6. Step 6: Final answer
   x = 3,168.45