Finding the Fourth Proportional to 50,123.51, 69,172.73 and 28,619.07

Step by Step Solution

1. Step 1: Write the proportion equation
   50,123.51 : 69,172.73 = 28,619.07 : x
2. Step 2: Convert to fraction form
   50,123.51/69,172.73 = 28,619.07/x
3. Step 3: Cross multiply
   50,123.51x = 69,172.73 × 28,619.07
4. Step 4: Simplify right side
   50,123.51x = 1,979,659,058.87
5. Step 5: Solve for x
   x = 1,979,659,058.87/50,123.51
6. Step 6: Final answer
   x = 39,495.62