Finding the Fourth Proportional to 8,591.82, 11,859.04 and 5,056.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,591.82 : 11,859.04 = 5,056.17 : x
2. Step 2: Convert to fraction form
   8,591.82/11,859.04 = 5,056.17/x
3. Step 3: Cross multiply
   8,591.82x = 11,859.04 × 5,056.17
4. Step 4: Simplify right side
   8,591.82x = 59,961,322.28
5. Step 5: Solve for x
   x = 59,961,322.28/8,591.82
6. Step 6: Final answer
   x = 6,978.88