Finding the Fourth Proportional to 8,046.91, 12,061.02 and 4,762.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,046.91 : 12,061.02 = 4,762.78 : x
2. Step 2: Convert to fraction form
   8,046.91/12,061.02 = 4,762.78/x
3. Step 3: Cross multiply
   8,046.91x = 12,061.02 × 4,762.78
4. Step 4: Simplify right side
   8,046.91x = 57,443,984.84
5. Step 5: Solve for x
   x = 57,443,984.84/8,046.91
6. Step 6: Final answer
   x = 7,138.64