Finding the Fourth Proportional to 7,467.78, 10,305.78 and 4,110.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,467.78 : 10,305.78 = 4,110.72 : x
2. Step 2: Convert to fraction form
   7,467.78/10,305.78 = 4,110.72/x
3. Step 3: Cross multiply
   7,467.78x = 10,305.78 × 4,110.72
4. Step 4: Simplify right side
   7,467.78x = 42,364,175.96
5. Step 5: Solve for x
   x = 42,364,175.96/7,467.78
6. Step 6: Final answer
   x = 5,672.93