Finding the Fourth Proportional to 12,191,865.31, 18,287,714.94 and 2,969,727.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,191,865.31 : 18,287,714.94 = 2,969,727.83 : x
2. Step 2: Convert to fraction form
   12,191,865.31/18,287,714.94 = 2,969,727.83/x
3. Step 3: Cross multiply
   12,191,865.31x = 18,287,714.94 × 2,969,727.83
4. Step 4: Simplify right side
   12,191,865.31x = 54,309,536,004,424.79
5. Step 5: Solve for x
   x = 54,309,536,004,424.79/12,191,865.31
6. Step 6: Final answer
   x = 4,454,571.52