Finding the Fourth Proportional to 8,719.71, 13,077.72 and 2,874.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,719.71 : 13,077.72 = 2,874.93 : x
2. Step 2: Convert to fraction form
   8,719.71/13,077.72 = 2,874.93/x
3. Step 3: Cross multiply
   8,719.71x = 13,077.72 × 2,874.93
4. Step 4: Simplify right side
   8,719.71x = 37,597,529.56
5. Step 5: Solve for x
   x = 37,597,529.56/8,719.71
6. Step 6: Final answer
   x = 4,311.79