Finding the Fourth Proportional to 8,887.05, 12,259.89 and 5,899.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,887.05 : 12,259.89 = 5,899.23 : x
2. Step 2: Convert to fraction form
   8,887.05/12,259.89 = 5,899.23/x
3. Step 3: Cross multiply
   8,887.05x = 12,259.89 × 5,899.23
4. Step 4: Simplify right side
   8,887.05x = 72,323,910.88
5. Step 5: Solve for x
   x = 72,323,910.88/8,887.05
6. Step 6: Final answer
   x = 8,138.12