Finding the Fourth Proportional to 12,076.93, 16,667.20 and 6,772.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,076.93 : 16,667.20 = 6,772.78 : x
2. Step 2: Convert to fraction form
   12,076.93/16,667.20 = 6,772.78/x
3. Step 3: Cross multiply
   12,076.93x = 16,667.20 × 6,772.78
4. Step 4: Simplify right side
   12,076.93x = 112,883,308.12
5. Step 5: Solve for x
   x = 112,883,308.12/12,076.93
6. Step 6: Final answer
   x = 9,347.02