Finding the Fourth Proportional to 2,673,552.15, 4,010,911.43 and 780,139.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673,552.15 : 4,010,911.43 = 780,139.35 : x
2. Step 2: Convert to fraction form
   2,673,552.15/4,010,911.43 = 780,139.35/x
3. Step 3: Cross multiply
   2,673,552.15x = 4,010,911.43 × 780,139.35
4. Step 4: Simplify right side
   2,673,552.15x = 3,129,069,832,007.07
5. Step 5: Solve for x
   x = 3,129,069,832,007.07/2,673,552.15
6. Step 6: Final answer
   x = 1,170,379.20