Finding the Fourth Proportional to 13,303.39, 18,359.50 and 7,335.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,303.39 : 18,359.50 = 7,335.05 : x
2. Step 2: Convert to fraction form
   13,303.39/18,359.50 = 7,335.05/x
3. Step 3: Cross multiply
   13,303.39x = 18,359.50 × 7,335.05
4. Step 4: Simplify right side
   13,303.39x = 134,667,740.34
5. Step 5: Solve for x
   x = 134,667,740.34/13,303.39
6. Step 6: Final answer
   x = 10,122.82