Finding the Fourth Proportional to 8,158.89, 12,231.27 and 4,865.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,158.89 : 12,231.27 = 4,865.07 : x
2. Step 2: Convert to fraction form
   8,158.89/12,231.27 = 4,865.07/x
3. Step 3: Cross multiply
   8,158.89x = 12,231.27 × 4,865.07
4. Step 4: Simplify right side
   8,158.89x = 59,506,030.61
5. Step 5: Solve for x
   x = 59,506,030.61/8,158.89
6. Step 6: Final answer
   x = 7,293.39