Finding the Fourth Proportional to 49,789.84, 74,715.89 and 20,207.67

Step by Step Solution

1. Step 1: Write the proportion equation
   49,789.84 : 74,715.89 = 20,207.67 : x
2. Step 2: Convert to fraction form
   49,789.84/74,715.89 = 20,207.67/x
3. Step 3: Cross multiply
   49,789.84x = 74,715.89 × 20,207.67
4. Step 4: Simplify right side
   49,789.84x = 1,509,834,099.40
5. Step 5: Solve for x
   x = 1,509,834,099.40/49,789.84
6. Step 6: Final answer
   x = 30,324.14