Finding the Fourth Proportional to 139,323.88, 209,016.06 and 45,826.12

Step by Step Solution

1. Step 1: Write the proportion equation
   139,323.88 : 209,016.06 = 45,826.12 : x
2. Step 2: Convert to fraction form
   139,323.88/209,016.06 = 45,826.12/x
3. Step 3: Cross multiply
   139,323.88x = 209,016.06 × 45,826.12
4. Step 4: Simplify right side
   139,323.88x = 9,578,395,047.49
5. Step 5: Solve for x
   x = 9,578,395,047.49/139,323.88
6. Step 6: Final answer
   x = 68,749.13