Finding the Fourth Proportional to 12,830,864, 19,246,320.78 and 3,115,436.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,830,864 : 19,246,320.78 = 3,115,436.05 : x
2. Step 2: Convert to fraction form
   12,830,864/19,246,320.78 = 3,115,436.05/x
3. Step 3: Cross multiply
   12,830,864x = 19,246,320.78 × 3,115,436.05
4. Step 4: Simplify right side
   12,830,864x = 59,960,681,476,067.33
5. Step 5: Solve for x
   x = 59,960,681,476,067.33/12,830,864
6. Step 6: Final answer
   x = 4,673,160.08