Finding the Fourth Proportional to 10,078.32, 15,120.51 and 4,071.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,078.32 : 15,120.51 = 4,071.30 : x
2. Step 2: Convert to fraction form
   10,078.32/15,120.51 = 4,071.30/x
3. Step 3: Cross multiply
   10,078.32x = 15,120.51 × 4,071.30
4. Step 4: Simplify right side
   10,078.32x = 61,560,132.36
5. Step 5: Solve for x
   x = 61,560,132.36/10,078.32
6. Step 6: Final answer
   x = 6,108.17