Finding the Fourth Proportional to 7,086.98, 10,671.64 and 5,251.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.98 : 10,671.64 = 5,251.10 : x
2. Step 2: Convert to fraction form
   7,086.98/10,671.64 = 5,251.10/x
3. Step 3: Cross multiply
   7,086.98x = 10,671.64 × 5,251.10
4. Step 4: Simplify right side
   7,086.98x = 56,037,848.80
5. Step 5: Solve for x
   x = 56,037,848.80/7,086.98
6. Step 6: Final answer
   x = 7,907.15