Finding the Fourth Proportional to 13,271.31, 18,314.64 and 7,304.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,271.31 : 18,314.64 = 7,304.04 : x
2. Step 2: Convert to fraction form
   13,271.31/18,314.64 = 7,304.04/x
3. Step 3: Cross multiply
   13,271.31x = 18,314.64 × 7,304.04
4. Step 4: Simplify right side
   13,271.31x = 133,770,863.15
5. Step 5: Solve for x
   x = 133,770,863.15/13,271.31
6. Step 6: Final answer
   x = 10,079.70