Finding the Fourth Proportional to 16,807.23, 23,178.72 and 13,805.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,807.23 : 23,178.72 = 13,805.37 : x
2. Step 2: Convert to fraction form
   16,807.23/23,178.72 = 13,805.37/x
3. Step 3: Cross multiply
   16,807.23x = 23,178.72 × 13,805.37
4. Step 4: Simplify right side
   16,807.23x = 319,990,805.73
5. Step 5: Solve for x
   x = 319,990,805.73/16,807.23
6. Step 6: Final answer
   x = 19,038.88