Finding the Fourth Proportional to 12,476.10, 18,714.51 and 3,116.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,476.10 : 18,714.51 = 3,116.10 : x
2. Step 2: Convert to fraction form
   12,476.10/18,714.51 = 3,116.10/x
3. Step 3: Cross multiply
   12,476.10x = 18,714.51 × 3,116.10
4. Step 4: Simplify right side
   12,476.10x = 58,316,284.61
5. Step 5: Solve for x
   x = 58,316,284.61/12,476.10
6. Step 6: Final answer
   x = 4,674.24