Finding the Fourth Proportional to 8,061.15, 12,105.36 and 4,947.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,061.15 : 12,105.36 = 4,947.39 : x
2. Step 2: Convert to fraction form
   8,061.15/12,105.36 = 4,947.39/x
3. Step 3: Cross multiply
   8,061.15x = 12,105.36 × 4,947.39
4. Step 4: Simplify right side
   8,061.15x = 59,889,937.01
5. Step 5: Solve for x
   x = 59,889,937.01/8,061.15
6. Step 6: Final answer
   x = 7,429.45