Finding the Fourth Proportional to 10,561.87, 15,838.17 and 3,166.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,561.87 : 15,838.17 = 3,166.93 : x
2. Step 2: Convert to fraction form
   10,561.87/15,838.17 = 3,166.93/x
3. Step 3: Cross multiply
   10,561.87x = 15,838.17 × 3,166.93
4. Step 4: Simplify right side
   10,561.87x = 50,158,375.72
5. Step 5: Solve for x
   x = 50,158,375.72/10,561.87
6. Step 6: Final answer
   x = 4,749.01