Finding the Fourth Proportional to 6,456,123.82, 8,909,343.21 and 3,555,784.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,456,123.82 : 8,909,343.21 = 3,555,784.56 : x
2. Step 2: Convert to fraction form
   6,456,123.82/8,909,343.21 = 3,555,784.56/x
3. Step 3: Cross multiply
   6,456,123.82x = 8,909,343.21 × 3,555,784.56
4. Step 4: Simplify right side
   6,456,123.82x = 31,679,705,002,486.73
5. Step 5: Solve for x
   x = 31,679,705,002,486.73/6,456,123.82
6. Step 6: Final answer
   x = 4,906,923.40