Finding the Fourth Proportional to 12,379.12, 17,076.30 and 7,338.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,379.12 : 17,076.30 = 7,338.49 : x
2. Step 2: Convert to fraction form
   12,379.12/17,076.30 = 7,338.49/x
3. Step 3: Cross multiply
   12,379.12x = 17,076.30 × 7,338.49
4. Step 4: Simplify right side
   12,379.12x = 125,314,256.79
5. Step 5: Solve for x
   x = 125,314,256.79/12,379.12
6. Step 6: Final answer
   x = 10,123.03