Finding the Fourth Proportional to 254,131.29, 350,705.86 and 139,415.82

Step by Step Solution

1. Step 1: Write the proportion equation
   254,131.29 : 350,705.86 = 139,415.82 : x
2. Step 2: Convert to fraction form
   254,131.29/350,705.86 = 139,415.82/x
3. Step 3: Cross multiply
   254,131.29x = 350,705.86 × 139,415.82
4. Step 4: Simplify right side
   254,131.29x = 48,893,945,050.71
5. Step 5: Solve for x
   x = 48,893,945,050.71/254,131.29
6. Step 6: Final answer
   x = 192,396.40