Finding the Fourth Proportional to 16,705.89, 25,075.24 and 12,556.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,705.89 : 25,075.24 = 12,556.06 : x
2. Step 2: Convert to fraction form
   16,705.89/25,075.24 = 12,556.06/x
3. Step 3: Cross multiply
   16,705.89x = 25,075.24 × 12,556.06
4. Step 4: Simplify right side
   16,705.89x = 314,846,123.88
5. Step 5: Solve for x
   x = 314,846,123.88/16,705.89
6. Step 6: Final answer
   x = 18,846.41