Finding the Fourth Proportional to 10,238.10, 15,354.46 and 2,840.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,238.10 : 15,354.46 = 2,840.87 : x
2. Step 2: Convert to fraction form
   10,238.10/15,354.46 = 2,840.87/x
3. Step 3: Cross multiply
   10,238.10x = 15,354.46 × 2,840.87
4. Step 4: Simplify right side
   10,238.10x = 43,620,066.72
5. Step 5: Solve for x
   x = 43,620,066.72/10,238.10
6. Step 6: Final answer
   x = 4,260.56