Finding the Fourth Proportional to 10,158.77, 15,238.91 and 2,763.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158.77 : 15,238.91 = 2,763.81 : x
2. Step 2: Convert to fraction form
   10,158.77/15,238.91 = 2,763.81/x
3. Step 3: Cross multiply
   10,158.77x = 15,238.91 × 2,763.81
4. Step 4: Simplify right side
   10,158.77x = 42,117,458.76
5. Step 5: Solve for x
   x = 42,117,458.76/10,158.77
6. Step 6: Final answer
   x = 4,145.92