Finding the Fourth Proportional to 10,104.64, 15,146.72 and 4,262.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,104.64 : 15,146.72 = 4,262.72 : x
2. Step 2: Convert to fraction form
   10,104.64/15,146.72 = 4,262.72/x
3. Step 3: Cross multiply
   10,104.64x = 15,146.72 × 4,262.72
4. Step 4: Simplify right side
   10,104.64x = 64,566,226.28
5. Step 5: Solve for x
   x = 64,566,226.28/10,104.64
6. Step 6: Final answer
   x = 6,389.76