Finding the Fourth Proportional to 13,057.53, 18,019.90 and 7,392.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,057.53 : 18,019.90 = 7,392.52 : x
2. Step 2: Convert to fraction form
   13,057.53/18,019.90 = 7,392.52/x
3. Step 3: Cross multiply
   13,057.53x = 18,019.90 × 7,392.52
4. Step 4: Simplify right side
   13,057.53x = 133,212,471.15
5. Step 5: Solve for x
   x = 133,212,471.15/13,057.53
6. Step 6: Final answer
   x = 10,201.97