Finding the Fourth Proportional to 139,572.24, 209,358.48 and 34,391.22

Step by Step Solution

1. Step 1: Write the proportion equation
   139,572.24 : 209,358.48 = 34,391.22 : x
2. Step 2: Convert to fraction form
   139,572.24/209,358.48 = 34,391.22/x
3. Step 3: Cross multiply
   139,572.24x = 209,358.48 × 34,391.22
4. Step 4: Simplify right side
   139,572.24x = 7,200,093,372.59
5. Step 5: Solve for x
   x = 7,200,093,372.59/139,572.24
6. Step 6: Final answer
   x = 51,586.86