Finding the Fourth Proportional to 14,419.35, 19,900.25 and 8,456.03

Step by Step Solution

1. Step 1: Write the proportion equation
   14,419.35 : 19,900.25 = 8,456.03 : x
2. Step 2: Convert to fraction form
   14,419.35/19,900.25 = 8,456.03/x
3. Step 3: Cross multiply
   14,419.35x = 19,900.25 × 8,456.03
4. Step 4: Simplify right side
   14,419.35x = 168,277,075.56
5. Step 5: Solve for x
   x = 168,277,075.56/14,419.35
6. Step 6: Final answer
   x = 11,670.23