Finding the Fourth Proportional to 13,425.58, 18,524.61 and 7,456.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,425.58 : 18,524.61 = 7,456.42 : x
2. Step 2: Convert to fraction form
   13,425.58/18,524.61 = 7,456.42/x
3. Step 3: Cross multiply
   13,425.58x = 18,524.61 × 7,456.42
4. Step 4: Simplify right side
   13,425.58x = 138,127,272.50
5. Step 5: Solve for x
   x = 138,127,272.50/13,425.58
6. Step 6: Final answer
   x = 10,288.37