Finding the Fourth Proportional to 95,443.10, 143,128.20 and 28,861.10

Step by Step Solution

1. Step 1: Write the proportion equation
   95,443.10 : 143,128.20 = 28,861.10 : x
2. Step 2: Convert to fraction form
   95,443.10/143,128.20 = 28,861.10/x
3. Step 3: Cross multiply
   95,443.10x = 143,128.20 × 28,861.10
4. Step 4: Simplify right side
   95,443.10x = 4,130,837,293.02
5. Step 5: Solve for x
   x = 4,130,837,293.02/95,443.10
6. Step 6: Final answer
   x = 43,280.63