Finding the Fourth Proportional to 37,786.50, 52,145.69 and 21,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,786.50 : 52,145.69 = 21,019.50 : x
2. Step 2: Convert to fraction form
   37,786.50/52,145.69 = 21,019.50/x
3. Step 3: Cross multiply
   37,786.50x = 52,145.69 × 21,019.50
4. Step 4: Simplify right side
   37,786.50x = 1,096,076,225.86
5. Step 5: Solve for x
   x = 1,096,076,225.86/37,786.50
6. Step 6: Final answer
   x = 29,007.09