Finding the Fourth Proportional to 50,340.50, 75,510.99 and 13,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,340.50 : 75,510.99 = 13,404.50 : x
2. Step 2: Convert to fraction form
   50,340.50/75,510.99 = 13,404.50/x
3. Step 3: Cross multiply
   50,340.50x = 75,510.99 × 13,404.50
4. Step 4: Simplify right side
   50,340.50x = 1,012,187,065.46
5. Step 5: Solve for x
   x = 1,012,187,065.46/50,340.50
6. Step 6: Final answer
   x = 20,106.81