Finding the Fourth Proportional to 13,392.78, 18,483.38 and 7,425.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,392.78 : 18,483.38 = 7,425.59 : x
2. Step 2: Convert to fraction form
   13,392.78/18,483.38 = 7,425.59/x
3. Step 3: Cross multiply
   13,392.78x = 18,483.38 × 7,425.59
4. Step 4: Simplify right side
   13,392.78x = 137,249,900.00
5. Step 5: Solve for x
   x = 137,249,900.00/13,392.78
6. Step 6: Final answer
   x = 10,248.05