Finding the Fourth Proportional to 8,979.10, 13,460.16 and 3,134.14

Step by Step Solution

1. Step 1: Write the proportion equation
   8,979.10 : 13,460.16 = 3,134.14 : x
2. Step 2: Convert to fraction form
   8,979.10/13,460.16 = 3,134.14/x
3. Step 3: Cross multiply
   8,979.10x = 13,460.16 × 3,134.14
4. Step 4: Simplify right side
   8,979.10x = 42,186,025.86
5. Step 5: Solve for x
   x = 42,186,025.86/8,979.10
6. Step 6: Final answer
   x = 4,698.25