Finding the Fourth Proportional to 10,043.28, 15,064.72 and 3,117.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,043.28 : 15,064.72 = 3,117.76 : x
2. Step 2: Convert to fraction form
   10,043.28/15,064.72 = 3,117.76/x
3. Step 3: Cross multiply
   10,043.28x = 15,064.72 × 3,117.76
4. Step 4: Simplify right side
   10,043.28x = 46,968,181.43
5. Step 5: Solve for x
   x = 46,968,181.43/10,043.28
6. Step 6: Final answer
   x = 4,676.58