Finding the Fourth Proportional to 11,127.78, 16,693.52 and 5,281.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,127.78 : 16,693.52 = 5,281.20 : x
2. Step 2: Convert to fraction form
   11,127.78/16,693.52 = 5,281.20/x
3. Step 3: Cross multiply
   11,127.78x = 16,693.52 × 5,281.20
4. Step 4: Simplify right side
   11,127.78x = 88,161,817.82
5. Step 5: Solve for x
   x = 88,161,817.82/11,127.78
6. Step 6: Final answer
   x = 7,922.68