Finding the Fourth Proportional to 7,113.12, 10,672.53 and 3,995.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,113.12 : 10,672.53 = 3,995.31 : x
2. Step 2: Convert to fraction form
   7,113.12/10,672.53 = 3,995.31/x
3. Step 3: Cross multiply
   7,113.12x = 10,672.53 × 3,995.31
4. Step 4: Simplify right side
   7,113.12x = 42,640,065.83
5. Step 5: Solve for x
   x = 42,640,065.83/7,113.12
6. Step 6: Final answer
   x = 5,994.57