Finding the Fourth Proportional to 10,158.70, 15,238.42 and 2,763.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158.70 : 15,238.42 = 2,763.37 : x
2. Step 2: Convert to fraction form
   10,158.70/15,238.42 = 2,763.37/x
3. Step 3: Cross multiply
   10,158.70x = 15,238.42 × 2,763.37
4. Step 4: Simplify right side
   10,158.70x = 42,109,392.68
5. Step 5: Solve for x
   x = 42,109,392.68/10,158.70
6. Step 6: Final answer
   x = 4,145.16