Finding the Fourth Proportional to 10,003.47, 15,013.31 and 5,074.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,003.47 : 15,013.31 = 5,074.52 : x
2. Step 2: Convert to fraction form
   10,003.47/15,013.31 = 5,074.52/x
3. Step 3: Cross multiply
   10,003.47x = 15,013.31 × 5,074.52
4. Step 4: Simplify right side
   10,003.47x = 76,185,241.42
5. Step 5: Solve for x
   x = 76,185,241.42/10,003.47
6. Step 6: Final answer
   x = 7,615.88