Finding the Fourth Proportional to 7,760.25, 10,714.19 and 5,112.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,760.25 : 10,714.19 = 5,112.15 : x
2. Step 2: Convert to fraction form
   7,760.25/10,714.19 = 5,112.15/x
3. Step 3: Cross multiply
   7,760.25x = 10,714.19 × 5,112.15
4. Step 4: Simplify right side
   7,760.25x = 54,772,546.41
5. Step 5: Solve for x
   x = 54,772,546.41/7,760.25
6. Step 6: Final answer
   x = 7,058.09