Finding the Fourth Proportional to 10,012.88, 15,022.84 and 4,470.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,012.88 : 15,022.84 = 4,470.16 : x
2. Step 2: Convert to fraction form
   10,012.88/15,022.84 = 4,470.16/x
3. Step 3: Cross multiply
   10,012.88x = 15,022.84 × 4,470.16
4. Step 4: Simplify right side
   10,012.88x = 67,154,498.45
5. Step 5: Solve for x
   x = 67,154,498.45/10,012.88
6. Step 6: Final answer
   x = 6,706.81