Finding the Fourth Proportional to 8,707.76, 13,061.76 and 2,134.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,707.76 : 13,061.76 = 2,134.10 : x
2. Step 2: Convert to fraction form
   8,707.76/13,061.76 = 2,134.10/x
3. Step 3: Cross multiply
   8,707.76x = 13,061.76 × 2,134.10
4. Step 4: Simplify right side
   8,707.76x = 27,875,102.02
5. Step 5: Solve for x
   x = 27,875,102.02/8,707.76
6. Step 6: Final answer
   x = 3,201.18