Finding the Fourth Proportional to 10,510.72, 15,768.36 and 3,114.64

Step by Step Solution

1. Step 1: Write the proportion equation
   10,510.72 : 15,768.36 = 3,114.64 : x
2. Step 2: Convert to fraction form
   10,510.72/15,768.36 = 3,114.64/x
3. Step 3: Cross multiply
   10,510.72x = 15,768.36 × 3,114.64
4. Step 4: Simplify right side
   10,510.72x = 49,112,764.79
5. Step 5: Solve for x
   x = 49,112,764.79/10,510.72
6. Step 6: Final answer
   x = 4,672.64