Finding the Fourth Proportional to 8,468.81, 11,687.37 and 5,111.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,468.81 : 11,687.37 = 5,111.56 : x
2. Step 2: Convert to fraction form
   8,468.81/11,687.37 = 5,111.56/x
3. Step 3: Cross multiply
   8,468.81x = 11,687.37 × 5,111.56
4. Step 4: Simplify right side
   8,468.81x = 59,740,693.00
5. Step 5: Solve for x
   x = 59,740,693.00/8,468.81
6. Step 6: Final answer
   x = 7,054.20