Finding the Fourth Proportional to 37,283.78, 51,451.59 and 20,516.78

Step by Step Solution

1. Step 1: Write the proportion equation
   37,283.78 : 51,451.59 = 20,516.78 : x
2. Step 2: Convert to fraction form
   37,283.78/51,451.59 = 20,516.78/x
3. Step 3: Cross multiply
   37,283.78x = 51,451.59 × 20,516.78
4. Step 4: Simplify right side
   37,283.78x = 1,055,620,695.42
5. Step 5: Solve for x
   x = 1,055,620,695.42/37,283.78
6. Step 6: Final answer
   x = 28,313.14