Finding the Fourth Proportional to 13,419.52, 18,524.32 and 13,066.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,419.52 : 18,524.32 = 13,066.24 : x
2. Step 2: Convert to fraction form
   13,419.52/18,524.32 = 13,066.24/x
3. Step 3: Cross multiply
   13,419.52x = 18,524.32 × 13,066.24
4. Step 4: Simplify right side
   13,419.52x = 242,043,210.96
5. Step 5: Solve for x
   x = 242,043,210.96/13,419.52
6. Step 6: Final answer
   x = 18,036.65