Finding the Fourth Proportional to 12,139,081.02, 18,207,046.86 and 5,753,390.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,139,081.02 : 18,207,046.86 = 5,753,390.94 : x
2. Step 2: Convert to fraction form
   12,139,081.02/18,207,046.86 = 5,753,390.94/x
3. Step 3: Cross multiply
   12,139,081.02x = 18,207,046.86 × 5,753,390.94
4. Step 4: Simplify right side
   12,139,081.02x = 104,752,258,448,479.45
5. Step 5: Solve for x
   x = 104,752,258,448,479.45/12,139,081.02
6. Step 6: Final answer
   x = 8,629,340.09