Finding the Fourth Proportional to 95,188.32, 142,789.56 and 28,623.12

Step by Step Solution

1. Step 1: Write the proportion equation
   95,188.32 : 142,789.56 = 28,623.12 : x
2. Step 2: Convert to fraction form
   95,188.32/142,789.56 = 28,623.12/x
3. Step 3: Cross multiply
   95,188.32x = 142,789.56 × 28,623.12
4. Step 4: Simplify right side
   95,188.32x = 4,087,082,710.63
5. Step 5: Solve for x
   x = 4,087,082,710.63/95,188.32
6. Step 6: Final answer
   x = 42,936.81