Finding the Fourth Proportional to 10,510.80, 14,514.28 and 10,012.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,510.80 : 14,514.28 = 10,012.88 : x
2. Step 2: Convert to fraction form
   10,510.80/14,514.28 = 10,012.88/x
3. Step 3: Cross multiply
   10,510.80x = 14,514.28 × 10,012.88
4. Step 4: Simplify right side
   10,510.80x = 145,329,743.93
5. Step 5: Solve for x
   x = 145,329,743.93/10,510.80
6. Step 6: Final answer
   x = 13,826.71