Finding the Fourth Proportional to 13,550.42, 18,697.91 and 7,580.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,550.42 : 18,697.91 = 7,580.59 : x
2. Step 2: Convert to fraction form
   13,550.42/18,697.91 = 7,580.59/x
3. Step 3: Cross multiply
   13,550.42x = 18,697.91 × 7,580.59
4. Step 4: Simplify right side
   13,550.42x = 141,741,104.92
5. Step 5: Solve for x
   x = 141,741,104.92/13,550.42
6. Step 6: Final answer
   x = 10,460.27