Finding the Fourth Proportional to 139,362.38, 209,973.33 and 126,050.74

Step by Step Solution

1. Step 1: Write the proportion equation
   139,362.38 : 209,973.33 = 126,050.74 : x
2. Step 2: Convert to fraction form
   139,362.38/209,973.33 = 126,050.74/x
3. Step 3: Cross multiply
   139,362.38x = 209,973.33 × 126,050.74
4. Step 4: Simplify right side
   139,362.38x = 26,467,293,626.76
5. Step 5: Solve for x
   x = 26,467,293,626.76/139,362.38
6. Step 6: Final answer
   x = 189,917.06