Finding the Fourth Proportional to 13,523.74, 18,662.73 and 7,555.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,523.74 : 18,662.73 = 7,555.42 : x
2. Step 2: Convert to fraction form
   13,523.74/18,662.73 = 7,555.42/x
3. Step 3: Cross multiply
   13,523.74x = 18,662.73 × 7,555.42
4. Step 4: Simplify right side
   13,523.74x = 141,004,763.50
5. Step 5: Solve for x
   x = 141,004,763.50/13,523.74
6. Step 6: Final answer
   x = 10,426.46