Finding the Fourth Proportional to 10,956.53, 16,428.94 and 5,686.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,956.53 : 16,428.94 = 5,686.23 : x
2. Step 2: Convert to fraction form
   10,956.53/16,428.94 = 5,686.23/x
3. Step 3: Cross multiply
   10,956.53x = 16,428.94 × 5,686.23
4. Step 4: Simplify right side
   10,956.53x = 93,418,731.50
5. Step 5: Solve for x
   x = 93,418,731.50/10,956.53
6. Step 6: Final answer
   x = 8,526.31