Finding the Fourth Proportional to 139,033.18, 208,565.88 and 50,328.46

Step by Step Solution

1. Step 1: Write the proportion equation
   139,033.18 : 208,565.88 = 50,328.46 : x
2. Step 2: Convert to fraction form
   139,033.18/208,565.88 = 50,328.46/x
3. Step 3: Cross multiply
   139,033.18x = 208,565.88 × 50,328.46
4. Step 4: Simplify right side
   139,033.18x = 10,496,799,548.94
5. Step 5: Solve for x
   x = 10,496,799,548.94/139,033.18
6. Step 6: Final answer
   x = 75,498.52