Finding the Fourth Proportional to 8,649.83, 11,934.78 and 5,111.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,649.83 : 11,934.78 = 5,111.12 : x
2. Step 2: Convert to fraction form
   8,649.83/11,934.78 = 5,111.12/x
3. Step 3: Cross multiply
   8,649.83x = 11,934.78 × 5,111.12
4. Step 4: Simplify right side
   8,649.83x = 61,000,092.75
5. Step 5: Solve for x
   x = 61,000,092.75/8,649.83
6. Step 6: Final answer
   x = 7,052.17