Finding the Fourth Proportional to 187,298.10, 258,298.20 and 126,956.34

Step by Step Solution

1. Step 1: Write the proportion equation
   187,298.10 : 258,298.20 = 126,956.34 : x
2. Step 2: Convert to fraction form
   187,298.10/258,298.20 = 126,956.34/x
3. Step 3: Cross multiply
   187,298.10x = 258,298.20 × 126,956.34
4. Step 4: Simplify right side
   187,298.10x = 32,792,594,100.59
5. Step 5: Solve for x
   x = 32,792,594,100.59/187,298.10
6. Step 6: Final answer
   x = 175,082.36