Finding the Fourth Proportional to 10,158.58, 15,238.95 and 2,763.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158.58 : 15,238.95 = 2,763.15 : x
2. Step 2: Convert to fraction form
   10,158.58/15,238.95 = 2,763.15/x
3. Step 3: Cross multiply
   10,158.58x = 15,238.95 × 2,763.15
4. Step 4: Simplify right side
   10,158.58x = 42,107,504.69
5. Step 5: Solve for x
   x = 42,107,504.69/10,158.58
6. Step 6: Final answer
   x = 4,145.02