Finding the Fourth Proportional to 13,285.69, 18,334.25 and 7,317.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,285.69 : 18,334.25 = 7,317.34 : x
2. Step 2: Convert to fraction form
   13,285.69/18,334.25 = 7,317.34/x
3. Step 3: Cross multiply
   13,285.69x = 18,334.25 × 7,317.34
4. Step 4: Simplify right side
   13,285.69x = 134,157,885.91
5. Step 5: Solve for x
   x = 134,157,885.91/13,285.69
6. Step 6: Final answer
   x = 10,097.93