Finding the Fourth Proportional to 139,401.22, 209,105.93 and 34,220.19

Step by Step Solution

1. Step 1: Write the proportion equation
   139,401.22 : 209,105.93 = 34,220.19 : x
2. Step 2: Convert to fraction form
   139,401.22/209,105.93 = 34,220.19/x
3. Step 3: Cross multiply
   139,401.22x = 209,105.93 × 34,220.19
4. Step 4: Simplify right side
   139,401.22x = 7,155,644,654.73
5. Step 5: Solve for x
   x = 7,155,644,654.73/139,401.22
6. Step 6: Final answer
   x = 51,331.29