Finding the Fourth Proportional to 12,139,083.51, 18,207,050.61 and 5,753,393.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,139,083.51 : 18,207,050.61 = 5,753,393.43 : x
2. Step 2: Convert to fraction form
   12,139,083.51/18,207,050.61 = 5,753,393.43/x
3. Step 3: Cross multiply
   12,139,083.51x = 18,207,050.61 × 5,753,393.43
4. Step 4: Simplify right side
   12,139,083.51x = 104,752,325,359,251.48
5. Step 5: Solve for x
   x = 104,752,325,359,251.48/12,139,083.51
6. Step 6: Final answer
   x = 8,629,343.83