Finding the Fourth Proportional to 37,310.52, 55,907.34 and 20,660.28

Step by Step Solution

1. Step 1: Write the proportion equation
   37,310.52 : 55,907.34 = 20,660.28 : x
2. Step 2: Convert to fraction form
   37,310.52/55,907.34 = 20,660.28/x
3. Step 3: Cross multiply
   37,310.52x = 55,907.34 × 20,660.28
4. Step 4: Simplify right side
   37,310.52x = 1,155,061,298.46
5. Step 5: Solve for x
   x = 1,155,061,298.46/37,310.52
6. Step 6: Final answer
   x = 30,958.06