Finding the Fourth Proportional to 7,860.98, 10,846.74 and 5,770.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,860.98 : 10,846.74 = 5,770.10 : x
2. Step 2: Convert to fraction form
   7,860.98/10,846.74 = 5,770.10/x
3. Step 3: Cross multiply
   7,860.98x = 10,846.74 × 5,770.10
4. Step 4: Simplify right side
   7,860.98x = 62,586,774.47
5. Step 5: Solve for x
   x = 62,586,774.47/7,860.98
6. Step 6: Final answer
   x = 7,961.70