Finding the Fourth Proportional to 36,738.72, 50,710.89 and 21,630.18

Step by Step Solution

1. Step 1: Write the proportion equation
   36,738.72 : 50,710.89 = 21,630.18 : x
2. Step 2: Convert to fraction form
   36,738.72/50,710.89 = 21,630.18/x
3. Step 3: Cross multiply
   36,738.72x = 50,710.89 × 21,630.18
4. Step 4: Simplify right side
   36,738.72x = 1,096,885,678.66
5. Step 5: Solve for x
   x = 1,096,885,678.66/36,738.72
6. Step 6: Final answer
   x = 29,856.39