Finding the Fourth Proportional to 10,003.62, 15,014.84 and 5,076.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,003.62 : 15,014.84 = 5,076.78 : x
2. Step 2: Convert to fraction form
   10,003.62/15,014.84 = 5,076.78/x
3. Step 3: Cross multiply
   10,003.62x = 15,014.84 × 5,076.78
4. Step 4: Simplify right side
   10,003.62x = 76,227,039.42
5. Step 5: Solve for x
   x = 76,227,039.42/10,003.62
6. Step 6: Final answer
   x = 7,619.95