Finding the Fourth Proportional to 37,782.73, 52,139.32 and 21,866.86

Step by Step Solution

1. Step 1: Write the proportion equation
   37,782.73 : 52,139.32 = 21,866.86 : x
2. Step 2: Convert to fraction form
   37,782.73/52,139.32 = 21,866.86/x
3. Step 3: Cross multiply
   37,782.73x = 52,139.32 × 21,866.86
4. Step 4: Simplify right side
   37,782.73x = 1,140,123,210.94
5. Step 5: Solve for x
   x = 1,140,123,210.94/37,782.73
6. Step 6: Final answer
   x = 30,175.78