Finding the Fourth Proportional to 10,087.02, 15,120.72 and 3,845.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,087.02 : 15,120.72 = 3,845.28 : x
2. Step 2: Convert to fraction form
   10,087.02/15,120.72 = 3,845.28/x
3. Step 3: Cross multiply
   10,087.02x = 15,120.72 × 3,845.28
4. Step 4: Simplify right side
   10,087.02x = 58,143,402.20
5. Step 5: Solve for x
   x = 58,143,402.20/10,087.02
6. Step 6: Final answer
   x = 5,764.18