Finding the Fourth Proportional to 9,379.05, 14,069.32 and 3,139.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,379.05 : 14,069.32 = 3,139.10 : x
2. Step 2: Convert to fraction form
   9,379.05/14,069.32 = 3,139.10/x
3. Step 3: Cross multiply
   9,379.05x = 14,069.32 × 3,139.10
4. Step 4: Simplify right side
   9,379.05x = 44,164,932.07
5. Step 5: Solve for x
   x = 44,164,932.07/9,379.05
6. Step 6: Final answer
   x = 4,708.89