Finding the Fourth Proportional to 8,674.54, 13,011.76 and 2,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,674.54 : 13,011.76 = 2,100.72 : x
2. Step 2: Convert to fraction form
   8,674.54/13,011.76 = 2,100.72/x
3. Step 3: Cross multiply
   8,674.54x = 13,011.76 × 2,100.72
4. Step 4: Simplify right side
   8,674.54x = 27,334,064.47
5. Step 5: Solve for x
   x = 27,334,064.47/8,674.54
6. Step 6: Final answer
   x = 3,151.07