Finding the Fourth Proportional to 10,514.79, 15,769.76 and 3,117.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,514.79 : 15,769.76 = 3,117.47 : x
2. Step 2: Convert to fraction form
   10,514.79/15,769.76 = 3,117.47/x
3. Step 3: Cross multiply
   10,514.79x = 15,769.76 × 3,117.47
4. Step 4: Simplify right side
   10,514.79x = 49,161,659.27
5. Step 5: Solve for x
   x = 49,161,659.27/10,514.79
6. Step 6: Final answer
   x = 4,675.48