Finding the Fourth Proportional to 10,134, 15,203.16 and 3,978

Step by Step Solution

1. Step 1: Write the proportion equation
   10,134 : 15,203.16 = 3,978 : x
2. Step 2: Convert to fraction form
   10,134/15,203.16 = 3,978/x
3. Step 3: Cross multiply
   10,134x = 15,203.16 × 3,978
4. Step 4: Simplify right side
   10,134x = 60,478,170.48
5. Step 5: Solve for x
   x = 60,478,170.48/10,134
6. Step 6: Final answer
   x = 5,967.85