Finding the Fourth Proportional to 1,420,109.82, 2,130,164.73 and 355,151.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420,109.82 : 2,130,164.73 = 355,151.82 : x
2. Step 2: Convert to fraction form
   1,420,109.82/2,130,164.73 = 355,151.82/x
3. Step 3: Cross multiply
   1,420,109.82x = 2,130,164.73 × 355,151.82
4. Step 4: Simplify right side
   1,420,109.82x = 756,531,880,759.31
5. Step 5: Solve for x
   x = 756,531,880,759.31/1,420,109.82
6. Step 6: Final answer
   x = 532,727.73