Finding the Fourth Proportional to 8,904.12, 12,290.24 and 5,881.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,904.12 : 12,290.24 = 5,881.45 : x
2. Step 2: Convert to fraction form
   8,904.12/12,290.24 = 5,881.45/x
3. Step 3: Cross multiply
   8,904.12x = 12,290.24 × 5,881.45
4. Step 4: Simplify right side
   8,904.12x = 72,284,432.05
5. Step 5: Solve for x
   x = 72,284,432.05/8,904.12
6. Step 6: Final answer
   x = 8,118.09