Finding the Fourth Proportional to 11,930.15, 17,890.67 and 3,923.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,930.15 : 17,890.67 = 3,923.06 : x
2. Step 2: Convert to fraction form
   11,930.15/17,890.67 = 3,923.06/x
3. Step 3: Cross multiply
   11,930.15x = 17,890.67 × 3,923.06
4. Step 4: Simplify right side
   11,930.15x = 70,186,062.78
5. Step 5: Solve for x
   x = 70,186,062.78/11,930.15
6. Step 6: Final answer
   x = 5,883.08