Finding the Fourth Proportional to 37,878.51, 52,272.71 and 20,883.43

Step by Step Solution

1. Step 1: Write the proportion equation
   37,878.51 : 52,272.71 = 20,883.43 : x
2. Step 2: Convert to fraction form
   37,878.51/52,272.71 = 20,883.43/x
3. Step 3: Cross multiply
   37,878.51x = 52,272.71 × 20,883.43
4. Step 4: Simplify right side
   37,878.51x = 1,091,633,480.20
5. Step 5: Solve for x
   x = 1,091,633,480.20/37,878.51
6. Step 6: Final answer
   x = 28,819.34