Finding the Fourth Proportional to 10,976.27, 16,459.54 and 7,885.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,976.27 : 16,459.54 = 7,885.31 : x
2. Step 2: Convert to fraction form
   10,976.27/16,459.54 = 7,885.31/x
3. Step 3: Cross multiply
   10,976.27x = 16,459.54 × 7,885.31
4. Step 4: Simplify right side
   10,976.27x = 129,788,473.35
5. Step 5: Solve for x
   x = 129,788,473.35/10,976.27
6. Step 6: Final answer
   x = 11,824.47