Finding the Fourth Proportional to 10,010.96, 15,015.89 and 5,080.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,010.96 : 15,015.89 = 5,080.47 : x
2. Step 2: Convert to fraction form
   10,010.96/15,015.89 = 5,080.47/x
3. Step 3: Cross multiply
   10,010.96x = 15,015.89 × 5,080.47
4. Step 4: Simplify right side
   10,010.96x = 76,287,735.06
5. Step 5: Solve for x
   x = 76,287,735.06/10,010.96
6. Step 6: Final answer
   x = 7,620.42