Finding the Fourth Proportional to 13,036.98, 17,989.92 and 7,371.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,036.98 : 17,989.92 = 7,371.45 : x
2. Step 2: Convert to fraction form
   13,036.98/17,989.92 = 7,371.45/x
3. Step 3: Cross multiply
   13,036.98x = 17,989.92 × 7,371.45
4. Step 4: Simplify right side
   13,036.98x = 132,611,795.78
5. Step 5: Solve for x
   x = 132,611,795.78/13,036.98
6. Step 6: Final answer
   x = 10,171.97