Finding the Fourth Proportional to 10,514.64, 15,769.52 and 3,117.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,514.64 : 15,769.52 = 3,117.31 : x
2. Step 2: Convert to fraction form
   10,514.64/15,769.52 = 3,117.31/x
3. Step 3: Cross multiply
   10,514.64x = 15,769.52 × 3,117.31
4. Step 4: Simplify right side
   10,514.64x = 49,158,498.21
5. Step 5: Solve for x
   x = 49,158,498.21/10,514.64
6. Step 6: Final answer
   x = 4,675.24