Finding the Fourth Proportional to 50,649.59, 69,896.16 and 27,990.15

Step by Step Solution

1. Step 1: Write the proportion equation
   50,649.59 : 69,896.16 = 27,990.15 : x
2. Step 2: Convert to fraction form
   50,649.59/69,896.16 = 27,990.15/x
3. Step 3: Cross multiply
   50,649.59x = 69,896.16 × 27,990.15
4. Step 4: Simplify right side
   50,649.59x = 1,956,404,002.82
5. Step 5: Solve for x
   x = 1,956,404,002.82/50,649.59
6. Step 6: Final answer
   x = 38,626.26