Finding the Fourth Proportional to 12,714.57, 19,080.77 and 5,224.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,714.57 : 19,080.77 = 5,224.10 : x
2. Step 2: Convert to fraction form
   12,714.57/19,080.77 = 5,224.10/x
3. Step 3: Cross multiply
   12,714.57x = 19,080.77 × 5,224.10
4. Step 4: Simplify right side
   12,714.57x = 99,679,729.03
5. Step 5: Solve for x
   x = 99,679,729.03/12,714.57
6. Step 6: Final answer
   x = 7,839.80