Finding the Fourth Proportional to 10,561.98, 15,842.79 and 3,166.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,561.98 : 15,842.79 = 3,166.32 : x
2. Step 2: Convert to fraction form
   10,561.98/15,842.79 = 3,166.32/x
3. Step 3: Cross multiply
   10,561.98x = 15,842.79 × 3,166.32
4. Step 4: Simplify right side
   10,561.98x = 50,163,342.83
5. Step 5: Solve for x
   x = 50,163,342.83/10,561.98
6. Step 6: Final answer
   x = 4,749.43