Finding the Fourth Proportional to 13,323.96, 18,386.59 and 7,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,323.96 : 18,386.59 = 7,355.50 : x
2. Step 2: Convert to fraction form
   13,323.96/18,386.59 = 7,355.50/x
3. Step 3: Cross multiply
   13,323.96x = 18,386.59 × 7,355.50
4. Step 4: Simplify right side
   13,323.96x = 135,242,588.02
5. Step 5: Solve for x
   x = 135,242,588.02/13,323.96
6. Step 6: Final answer
   x = 10,150.33