Finding the Fourth Proportional to 13,059.42, 18,019.80 and 7,393.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,059.42 : 18,019.80 = 7,393.56 : x
2. Step 2: Convert to fraction form
   13,059.42/18,019.80 = 7,393.56/x
3. Step 3: Cross multiply
   13,059.42x = 18,019.80 × 7,393.56
4. Step 4: Simplify right side
   13,059.42x = 133,230,472.49
5. Step 5: Solve for x
   x = 133,230,472.49/13,059.42
6. Step 6: Final answer
   x = 10,201.87