Finding the Fourth Proportional to 10,023.78, 15,019.25 and 5,338.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,023.78 : 15,019.25 = 5,338.82 : x
2. Step 2: Convert to fraction form
   10,023.78/15,019.25 = 5,338.82/x
3. Step 3: Cross multiply
   10,023.78x = 15,019.25 × 5,338.82
4. Step 4: Simplify right side
   10,023.78x = 80,184,970.49
5. Step 5: Solve for x
   x = 80,184,970.49/10,023.78
6. Step 6: Final answer
   x = 7,999.47