Finding the Fourth Proportional to 139,371.23, 209,044.55 and 50,625.51

Step by Step Solution

1. Step 1: Write the proportion equation
   139,371.23 : 209,044.55 = 50,625.51 : x
2. Step 2: Convert to fraction form
   139,371.23/209,044.55 = 50,625.51/x
3. Step 3: Cross multiply
   139,371.23x = 209,044.55 × 50,625.51
4. Step 4: Simplify right side
   139,371.23x = 10,582,986,703.34
5. Step 5: Solve for x
   x = 10,582,986,703.34/139,371.23
6. Step 6: Final answer
   x = 75,933.80