Finding the Fourth Proportional to 9,380.18, 12,944.17 and 5,130.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,380.18 : 12,944.17 = 5,130.42 : x
2. Step 2: Convert to fraction form
   9,380.18/12,944.17 = 5,130.42/x
3. Step 3: Cross multiply
   9,380.18x = 12,944.17 × 5,130.42
4. Step 4: Simplify right side
   9,380.18x = 66,409,028.65
5. Step 5: Solve for x
   x = 66,409,028.65/9,380.18
6. Step 6: Final answer
   x = 7,079.72