Finding the Fourth Proportional to 298,667.74, 447,846.08 and 140,853.82

Step by Step Solution

1. Step 1: Write the proportion equation
   298,667.74 : 447,846.08 = 140,853.82 : x
2. Step 2: Convert to fraction form
   298,667.74/447,846.08 = 140,853.82/x
3. Step 3: Cross multiply
   298,667.74x = 447,846.08 × 140,853.82
4. Step 4: Simplify right side
   298,667.74x = 63,080,831,140.03
5. Step 5: Solve for x
   x = 63,080,831,140.03/298,667.74
6. Step 6: Final answer
   x = 211,207.38