Finding the Fourth Proportional to 139,352.22, 209,047.13 and 50,631.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,352.22 : 209,047.13 = 50,631.10 : x
2. Step 2: Convert to fraction form
   139,352.22/209,047.13 = 50,631.10/x
3. Step 3: Cross multiply
   139,352.22x = 209,047.13 × 50,631.10
4. Step 4: Simplify right side
   139,352.22x = 10,584,286,145.78
5. Step 5: Solve for x
   x = 10,584,286,145.78/139,352.22
6. Step 6: Final answer
   x = 75,953.48