Finding the Fourth Proportional to 13,013.76, 17,959.69 and 7,350.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,013.76 : 17,959.69 = 7,350.35 : x
2. Step 2: Convert to fraction form
   13,013.76/17,959.69 = 7,350.35/x
3. Step 3: Cross multiply
   13,013.76x = 17,959.69 × 7,350.35
4. Step 4: Simplify right side
   13,013.76x = 132,009,926.78
5. Step 5: Solve for x
   x = 132,009,926.78/13,013.76
6. Step 6: Final answer
   x = 10,143.87