Finding the Fourth Proportional to 10,680.81, 16,024.64 and 5,134.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,680.81 : 16,024.64 = 5,134.56 : x
2. Step 2: Convert to fraction form
   10,680.81/16,024.64 = 5,134.56/x
3. Step 3: Cross multiply
   10,680.81x = 16,024.64 × 5,134.56
4. Step 4: Simplify right side
   10,680.81x = 82,279,369.76
5. Step 5: Solve for x
   x = 82,279,369.76/10,680.81
6. Step 6: Final answer
   x = 7,703.48