Finding the Fourth Proportional to 37,785.40, 52,150.38 and 21,878.62

Step by Step Solution

1. Step 1: Write the proportion equation
   37,785.40 : 52,150.38 = 21,878.62 : x
2. Step 2: Convert to fraction form
   37,785.40/52,150.38 = 21,878.62/x
3. Step 3: Cross multiply
   37,785.40x = 52,150.38 × 21,878.62
4. Step 4: Simplify right side
   37,785.40x = 1,140,978,346.88
5. Step 5: Solve for x
   x = 1,140,978,346.88/37,785.40
6. Step 6: Final answer
   x = 30,196.28