Finding the Fourth Proportional to 13,333.29, 18,399.20 and 7,364.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,333.29 : 18,399.20 = 7,364.81 : x
2. Step 2: Convert to fraction form
   13,333.29/18,399.20 = 7,364.81/x
3. Step 3: Cross multiply
   13,333.29x = 18,399.20 × 7,364.81
4. Step 4: Simplify right side
   13,333.29x = 135,506,483.33
5. Step 5: Solve for x
   x = 135,506,483.33/13,333.29
6. Step 6: Final answer
   x = 10,163.02