Finding the Fourth Proportional to 50,642.72, 69,890.25 and 27,981.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,642.72 : 69,890.25 = 27,981.72 : x
2. Step 2: Convert to fraction form
   50,642.72/69,890.25 = 27,981.72/x
3. Step 3: Cross multiply
   50,642.72x = 69,890.25 × 27,981.72
4. Step 4: Simplify right side
   50,642.72x = 1,955,649,511.16
5. Step 5: Solve for x
   x = 1,955,649,511.16/50,642.72
6. Step 6: Final answer
   x = 38,616.59