Finding the Fourth Proportional to 50,019.30, 69,032.59 and 28,802.70

Step by Step Solution

1. Step 1: Write the proportion equation
   50,019.30 : 69,032.59 = 28,802.70 : x
2. Step 2: Convert to fraction form
   50,019.30/69,032.59 = 28,802.70/x
3. Step 3: Cross multiply
   50,019.30x = 69,032.59 × 28,802.70
4. Step 4: Simplify right side
   50,019.30x = 1,988,324,907.99
5. Step 5: Solve for x
   x = 1,988,324,907.99/50,019.30
6. Step 6: Final answer
   x = 39,751.15