Finding the Fourth Proportional to 16,590.78, 22,924.42 and 13,261.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,590.78 : 22,924.42 = 13,261.08 : x
2. Step 2: Convert to fraction form
   16,590.78/22,924.42 = 13,261.08/x
3. Step 3: Cross multiply
   16,590.78x = 22,924.42 × 13,261.08
4. Step 4: Simplify right side
   16,590.78x = 304,002,567.57
5. Step 5: Solve for x
   x = 304,002,567.57/16,590.78
6. Step 6: Final answer
   x = 18,323.59