Finding the Fourth Proportional to 13,064.78, 18,016.98 and 8,592.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,064.78 : 18,016.98 = 8,592.32 : x
2. Step 2: Convert to fraction form
   13,064.78/18,016.98 = 8,592.32/x
3. Step 3: Cross multiply
   13,064.78x = 18,016.98 × 8,592.32
4. Step 4: Simplify right side
   13,064.78x = 154,807,657.59
5. Step 5: Solve for x
   x = 154,807,657.59/13,064.78
6. Step 6: Final answer
   x = 11,849.24