Finding the Fourth Proportional to 69,105.40, 95,364.30 and 38,890.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,105.40 : 95,364.30 = 38,890.72 : x
2. Step 2: Convert to fraction form
   69,105.40/95,364.30 = 38,890.72/x
3. Step 3: Cross multiply
   69,105.40x = 95,364.30 × 38,890.72
4. Step 4: Simplify right side
   69,105.40x = 3,708,786,289.30
5. Step 5: Solve for x
   x = 3,708,786,289.30/69,105.40
6. Step 6: Final answer
   x = 53,668.55