Finding the Fourth Proportional to 126,257.95, 189,142.71 and 105,751.24

Step by Step Solution

1. Step 1: Write the proportion equation
   126,257.95 : 189,142.71 = 105,751.24 : x
2. Step 2: Convert to fraction form
   126,257.95/189,142.71 = 105,751.24/x
3. Step 3: Cross multiply
   126,257.95x = 189,142.71 × 105,751.24
4. Step 4: Simplify right side
   126,257.95x = 20,002,075,844.89
5. Step 5: Solve for x
   x = 20,002,075,844.89/126,257.95
6. Step 6: Final answer
   x = 158,422.31