Finding the Fourth Proportional to 36,665.50, 50,611.51 and 21,761.50

Step by Step Solution

1. Step 1: Write the proportion equation
   36,665.50 : 50,611.51 = 21,761.50 : x
2. Step 2: Convert to fraction form
   36,665.50/50,611.51 = 21,761.50/x
3. Step 3: Cross multiply
   36,665.50x = 50,611.51 × 21,761.50
4. Step 4: Simplify right side
   36,665.50x = 1,101,382,374.87
5. Step 5: Solve for x
   x = 1,101,382,374.87/36,665.50
6. Step 6: Final answer
   x = 30,038.66