Finding the Fourth Proportional to 8,140.95, 12,227.82 and 4,860.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,140.95 : 12,227.82 = 4,860.45 : x
2. Step 2: Convert to fraction form
   8,140.95/12,227.82 = 4,860.45/x
3. Step 3: Cross multiply
   8,140.95x = 12,227.82 × 4,860.45
4. Step 4: Simplify right side
   8,140.95x = 59,432,707.72
5. Step 5: Solve for x
   x = 59,432,707.72/8,140.95
6. Step 6: Final answer
   x = 7,300.46