Finding the Fourth Proportional to 95,123.49, 142,686.43 and 28,559.75

Step by Step Solution

1. Step 1: Write the proportion equation
   95,123.49 : 142,686.43 = 28,559.75 : x
2. Step 2: Convert to fraction form
   95,123.49/142,686.43 = 28,559.75/x
3. Step 3: Cross multiply
   95,123.49x = 142,686.43 × 28,559.75
4. Step 4: Simplify right side
   95,123.49x = 4,075,087,984.36
5. Step 5: Solve for x
   x = 4,075,087,984.36/95,123.49
6. Step 6: Final answer
   x = 42,839.98