Finding the Fourth Proportional to 10,606.56, 15,924.24 and 7,311.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,606.56 : 15,924.24 = 7,311.48 : x
2. Step 2: Convert to fraction form
   10,606.56/15,924.24 = 7,311.48/x
3. Step 3: Cross multiply
   10,606.56x = 15,924.24 × 7,311.48
4. Step 4: Simplify right side
   10,606.56x = 116,429,762.28
5. Step 5: Solve for x
   x = 116,429,762.28/10,606.56
6. Step 6: Final answer
   x = 10,977.15