Finding the Fourth Proportional to 37,879.47, 52,272.71 and 20,883.32

Step by Step Solution

1. Step 1: Write the proportion equation
   37,879.47 : 52,272.71 = 20,883.32 : x
2. Step 2: Convert to fraction form
   37,879.47/52,272.71 = 20,883.32/x
3. Step 3: Cross multiply
   37,879.47x = 52,272.71 × 20,883.32
4. Step 4: Simplify right side
   37,879.47x = 1,091,627,364.42
5. Step 5: Solve for x
   x = 1,091,627,364.42/37,879.47
6. Step 6: Final answer
   x = 28,818.44