Finding the Fourth Proportional to 49,765.53, 74,636.69 and 28,660.71

Step by Step Solution

1. Step 1: Write the proportion equation
   49,765.53 : 74,636.69 = 28,660.71 : x
2. Step 2: Convert to fraction form
   49,765.53/74,636.69 = 28,660.71/x
3. Step 3: Cross multiply
   49,765.53x = 74,636.69 × 28,660.71
4. Step 4: Simplify right side
   49,765.53x = 2,139,140,384.15
5. Step 5: Solve for x
   x = 2,139,140,384.15/49,765.53
6. Step 6: Final answer
   x = 42,984.38