Finding the Fourth Proportional to 13,152.30, 18,452.10 and 13,152.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152.30 : 18,452.10 = 13,152.30 : x
2. Step 2: Convert to fraction form
   13,152.30/18,452.10 = 13,152.30/x
3. Step 3: Cross multiply
   13,152.30x = 18,452.10 × 13,152.30
4. Step 4: Simplify right side
   13,152.30x = 242,687,554.83
5. Step 5: Solve for x
   x = 242,687,554.83/13,152.30
6. Step 6: Final answer
   x = 18,452.10