Finding the Fourth Proportional to 13,624.67, 18,801.59 and 7,574.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,624.67 : 18,801.59 = 7,574.89 : x
2. Step 2: Convert to fraction form
   13,624.67/18,801.59 = 7,574.89/x
3. Step 3: Cross multiply
   13,624.67x = 18,801.59 × 7,574.89
4. Step 4: Simplify right side
   13,624.67x = 142,420,004.14
5. Step 5: Solve for x
   x = 142,420,004.14/13,624.67
6. Step 6: Final answer
   x = 10,453.10