Finding the Fourth Proportional to 13,453.62, 18,566.08 and 7,485.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,453.62 : 18,566.08 = 7,485.13 : x
2. Step 2: Convert to fraction form
   13,453.62/18,566.08 = 7,485.13/x
3. Step 3: Cross multiply
   13,453.62x = 18,566.08 × 7,485.13
4. Step 4: Simplify right side
   13,453.62x = 138,969,526.89
5. Step 5: Solve for x
   x = 138,969,526.89/13,453.62
6. Step 6: Final answer
   x = 10,329.53