Finding the Fourth Proportional to 139,054.03, 208,601.86 and 50,328.29

Step by Step Solution

1. Step 1: Write the proportion equation
   139,054.03 : 208,601.86 = 50,328.29 : x
2. Step 2: Convert to fraction form
   139,054.03/208,601.86 = 50,328.29/x
3. Step 3: Cross multiply
   139,054.03x = 208,601.86 × 50,328.29
4. Step 4: Simplify right side
   139,054.03x = 10,498,575,268.17
5. Step 5: Solve for x
   x = 10,498,575,268.17/139,054.03
6. Step 6: Final answer
   x = 75,499.97