Finding the Fourth Proportional to 37,728.58, 52,074.81 and 21,822.25

Step by Step Solution

1. Step 1: Write the proportion equation
   37,728.58 : 52,074.81 = 21,822.25 : x
2. Step 2: Convert to fraction form
   37,728.58/52,074.81 = 21,822.25/x
3. Step 3: Cross multiply
   37,728.58x = 52,074.81 × 21,822.25
4. Step 4: Simplify right side
   37,728.58x = 1,136,389,522.52
5. Step 5: Solve for x
   x = 1,136,389,522.52/37,728.58
6. Step 6: Final answer
   x = 30,120.12