Finding the Fourth Proportional to 37,436.58, 51,662.18 and 20,440.78

Step by Step Solution

1. Step 1: Write the proportion equation
   37,436.58 : 51,662.18 = 20,440.78 : x
2. Step 2: Convert to fraction form
   37,436.58/51,662.18 = 20,440.78/x
3. Step 3: Cross multiply
   37,436.58x = 51,662.18 × 20,440.78
4. Step 4: Simplify right side
   37,436.58x = 1,056,015,265.46
5. Step 5: Solve for x
   x = 1,056,015,265.46/37,436.58
6. Step 6: Final answer
   x = 28,208.11