Finding the Fourth Proportional to 13,013.72, 17,959 and 7,348.70

Step by Step Solution

1. Step 1: Write the proportion equation
   13,013.72 : 17,959 = 7,348.70 : x
2. Step 2: Convert to fraction form
   13,013.72/17,959 = 7,348.70/x
3. Step 3: Cross multiply
   13,013.72x = 17,959 × 7,348.70
4. Step 4: Simplify right side
   13,013.72x = 131,975,303.30
5. Step 5: Solve for x
   x = 131,975,303.30/13,013.72
6. Step 6: Final answer
   x = 10,141.24