Finding the Fourth Proportional to 15,546.89, 21,454.72 and 8,473.31

Step by Step Solution

1. Step 1: Write the proportion equation
   15,546.89 : 21,454.72 = 8,473.31 : x
2. Step 2: Convert to fraction form
   15,546.89/21,454.72 = 8,473.31/x
3. Step 3: Cross multiply
   15,546.89x = 21,454.72 × 8,473.31
4. Step 4: Simplify right side
   15,546.89x = 181,792,525.98
5. Step 5: Solve for x
   x = 181,792,525.98/15,546.89
6. Step 6: Final answer
   x = 11,693.18