Finding the Fourth Proportional to 13,028.74, 17,978.58 and 7,363.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,028.74 : 17,978.58 = 7,363.98 : x
2. Step 2: Convert to fraction form
   13,028.74/17,978.58 = 7,363.98/x
3. Step 3: Cross multiply
   13,028.74x = 17,978.58 × 7,363.98
4. Step 4: Simplify right side
   13,028.74x = 132,393,903.55
5. Step 5: Solve for x
   x = 132,393,903.55/13,028.74
6. Step 6: Final answer
   x = 10,161.68