Finding the Fourth Proportional to 9,152.82, 12,630.81 and 5,119.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,152.82 : 12,630.81 = 5,119.60 : x
2. Step 2: Convert to fraction form
   9,152.82/12,630.81 = 5,119.60/x
3. Step 3: Cross multiply
   9,152.82x = 12,630.81 × 5,119.60
4. Step 4: Simplify right side
   9,152.82x = 64,664,606.12
5. Step 5: Solve for x
   x = 64,664,606.12/9,152.82
6. Step 6: Final answer
   x = 7,064.99