Finding the Fourth Proportional to 37,786.11, 52,143.98 and 21,870.24

Step by Step Solution

1. Step 1: Write the proportion equation
   37,786.11 : 52,143.98 = 21,870.24 : x
2. Step 2: Convert to fraction form
   37,786.11/52,143.98 = 21,870.24/x
3. Step 3: Cross multiply
   37,786.11x = 52,143.98 × 21,870.24
4. Step 4: Simplify right side
   37,786.11x = 1,140,401,357.16
5. Step 5: Solve for x
   x = 1,140,401,357.16/37,786.11
6. Step 6: Final answer
   x = 30,180.44