Finding the Fourth Proportional to 909,116.10, 1,363,674.15 and 403,676.10

Step by Step Solution

1. Step 1: Write the proportion equation
   909,116.10 : 1,363,674.15 = 403,676.10 : x
2. Step 2: Convert to fraction form
   909,116.10/1,363,674.15 = 403,676.10/x
3. Step 3: Cross multiply
   909,116.10x = 1,363,674.15 × 403,676.10
4. Step 4: Simplify right side
   909,116.10x = 550,482,662,542.82
5. Step 5: Solve for x
   x = 550,482,662,542.82/909,116.10
6. Step 6: Final answer
   x = 605,514.15