Finding the Fourth Proportional to 12,479.67, 18,714.30 and 5,079.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,479.67 : 18,714.30 = 5,079.10 : x
2. Step 2: Convert to fraction form
   12,479.67/18,714.30 = 5,079.10/x
3. Step 3: Cross multiply
   12,479.67x = 18,714.30 × 5,079.10
4. Step 4: Simplify right side
   12,479.67x = 95,051,824.52
5. Step 5: Solve for x
   x = 95,051,824.52/12,479.67
6. Step 6: Final answer
   x = 7,616.54