Finding the Fourth Proportional to 13,054.35, 18,014.81 and 7,390.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,054.35 : 18,014.81 = 7,390.18 : x
2. Step 2: Convert to fraction form
   13,054.35/18,014.81 = 7,390.18/x
3. Step 3: Cross multiply
   13,054.35x = 18,014.81 × 7,390.18
4. Step 4: Simplify right side
   13,054.35x = 133,132,688.57
5. Step 5: Solve for x
   x = 133,132,688.57/13,054.35
6. Step 6: Final answer
   x = 10,198.34