Finding the Fourth Proportional to 50,639.86, 69,882.76 and 27,978.84

Step by Step Solution

1. Step 1: Write the proportion equation
   50,639.86 : 69,882.76 = 27,978.84 : x
2. Step 2: Convert to fraction form
   50,639.86/69,882.76 = 27,978.84/x
3. Step 3: Cross multiply
   50,639.86x = 69,882.76 × 27,978.84
4. Step 4: Simplify right side
   50,639.86x = 1,955,238,560.80
5. Step 5: Solve for x
   x = 1,955,238,560.80/50,639.86
6. Step 6: Final answer
   x = 38,610.66