Finding the Fourth Proportional to 1,420,111.82, 2,130,167.73 and 355,153.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420,111.82 : 2,130,167.73 = 355,153.82 : x
2. Step 2: Convert to fraction form
   1,420,111.82/2,130,167.73 = 355,153.82/x
3. Step 3: Cross multiply
   1,420,111.82x = 2,130,167.73 × 355,153.82
4. Step 4: Simplify right side
   1,420,111.82x = 756,537,206,550.23
5. Step 5: Solve for x
   x = 756,537,206,550.23/1,420,111.82
6. Step 6: Final answer
   x = 532,730.73