Finding the Fourth Proportional to 95,445.10, 143,131.20 and 28,863.10

Step by Step Solution

1. Step 1: Write the proportion equation
   95,445.10 : 143,131.20 = 28,863.10 : x
2. Step 2: Convert to fraction form
   95,445.10/143,131.20 = 28,863.10/x
3. Step 3: Cross multiply
   95,445.10x = 143,131.20 × 28,863.10
4. Step 4: Simplify right side
   95,445.10x = 4,131,210,138.72
5. Step 5: Solve for x
   x = 4,131,210,138.72/95,445.10
6. Step 6: Final answer
   x = 43,283.63