Finding the Fourth Proportional to 15,550.98, 21,460.41 and 8,477.43

Step by Step Solution

1. Step 1: Write the proportion equation
   15,550.98 : 21,460.41 = 8,477.43 : x
2. Step 2: Convert to fraction form
   15,550.98/21,460.41 = 8,477.43/x
3. Step 3: Cross multiply
   15,550.98x = 21,460.41 × 8,477.43
4. Step 4: Simplify right side
   15,550.98x = 181,929,123.55
5. Step 5: Solve for x
   x = 181,929,123.55/15,550.98
6. Step 6: Final answer
   x = 11,698.88