Finding the Fourth Proportional to 495,454.35, 743,035.71 and 140,499.39

Step by Step Solution

1. Step 1: Write the proportion equation
   495,454.35 : 743,035.71 = 140,499.39 : x
2. Step 2: Convert to fraction form
   495,454.35/743,035.71 = 140,499.39/x
3. Step 3: Cross multiply
   495,454.35x = 743,035.71 × 140,499.39
4. Step 4: Simplify right side
   495,454.35x = 104,396,064,003.22
5. Step 5: Solve for x
   x = 104,396,064,003.22/495,454.35
6. Step 6: Final answer
   x = 210,707.74