Finding the Fourth Proportional to 3,105,111.15, 4,654,896.53 and 1,211,412.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105,111.15 : 4,654,896.53 = 1,211,412.15 : x
2. Step 2: Convert to fraction form
   3,105,111.15/4,654,896.53 = 1,211,412.15/x
3. Step 3: Cross multiply
   3,105,111.15x = 4,654,896.53 × 1,211,412.15
4. Step 4: Simplify right side
   3,105,111.15x = 5,638,998,207,377.78
5. Step 5: Solve for x
   x = 5,638,998,207,377.78/3,105,111.15
6. Step 6: Final answer
   x = 1,816,037.47