Finding the Fourth Proportional to 12,662,830.74, 18,994,105.92 and 3,078,218.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662,830.74 : 18,994,105.92 = 3,078,218.46 : x
2. Step 2: Convert to fraction form
   12,662,830.74/18,994,105.92 = 3,078,218.46/x
3. Step 3: Cross multiply
   12,662,830.74x = 18,994,105.92 × 3,078,218.46
4. Step 4: Simplify right side
   12,662,830.74x = 58,468,007,474,139.29
5. Step 5: Solve for x
   x = 58,468,007,474,139.29/12,662,830.74
6. Step 6: Final answer
   x = 4,617,293.61