Finding the Fourth Proportional to 8,740.89, 12,060.57 and 5,908.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,740.89 : 12,060.57 = 5,908.71 : x
2. Step 2: Convert to fraction form
   8,740.89/12,060.57 = 5,908.71/x
3. Step 3: Cross multiply
   8,740.89x = 12,060.57 × 5,908.71
4. Step 4: Simplify right side
   8,740.89x = 71,262,410.56
5. Step 5: Solve for x
   x = 71,262,410.56/8,740.89
6. Step 6: Final answer
   x = 8,152.76