Finding the Fourth Proportional to 8,772.42, 12,106.72 and 4,994.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,772.42 : 12,106.72 = 4,994.76 : x
2. Step 2: Convert to fraction form
   8,772.42/12,106.72 = 4,994.76/x
3. Step 3: Cross multiply
   8,772.42x = 12,106.72 × 4,994.76
4. Step 4: Simplify right side
   8,772.42x = 60,470,160.79
5. Step 5: Solve for x
   x = 60,470,160.79/8,772.42
6. Step 6: Final answer
   x = 6,893.21