Finding the Fourth Proportional to 13,132.02, 18,134.49 and 8,424.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,132.02 : 18,134.49 = 8,424.48 : x
2. Step 2: Convert to fraction form
   13,132.02/18,134.49 = 8,424.48/x
3. Step 3: Cross multiply
   13,132.02x = 18,134.49 × 8,424.48
4. Step 4: Simplify right side
   13,132.02x = 152,773,648.32
5. Step 5: Solve for x
   x = 152,773,648.32/13,132.02
6. Step 6: Final answer
   x = 11,633.67