Finding the Fourth Proportional to 13,271.88, 18,315.69 and 7,304.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,271.88 : 18,315.69 = 7,304.01 : x
2. Step 2: Convert to fraction form
   13,271.88/18,315.69 = 7,304.01/x
3. Step 3: Cross multiply
   13,271.88x = 18,315.69 × 7,304.01
4. Step 4: Simplify right side
   13,271.88x = 133,777,886.84
5. Step 5: Solve for x
   x = 133,777,886.84/13,271.88
6. Step 6: Final answer
   x = 10,079.80