Finding the Fourth Proportional to 10,922.56, 16,376.88 and 5,080.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,922.56 : 16,376.88 = 5,080.96 : x
2. Step 2: Convert to fraction form
   10,922.56/16,376.88 = 5,080.96/x
3. Step 3: Cross multiply
   10,922.56x = 16,376.88 × 5,080.96
4. Step 4: Simplify right side
   10,922.56x = 83,210,272.20
5. Step 5: Solve for x
   x = 83,210,272.20/10,922.56
6. Step 6: Final answer
   x = 7,618.20