Finding the Fourth Proportional to 10,970.56, 16,455.83 and 5,131.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,970.56 : 16,455.83 = 5,131.27 : x
2. Step 2: Convert to fraction form
   10,970.56/16,455.83 = 5,131.27/x
3. Step 3: Cross multiply
   10,970.56x = 16,455.83 × 5,131.27
4. Step 4: Simplify right side
   10,970.56x = 84,439,306.80
5. Step 5: Solve for x
   x = 84,439,306.80/10,970.56
6. Step 6: Final answer
   x = 7,696.90