Finding the Fourth Proportional to 5,355,123.81, 7,388,245.87 and 3,422,499.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,355,123.81 : 7,388,245.87 = 3,422,499.31 : x
2. Step 2: Convert to fraction form
   5,355,123.81/7,388,245.87 = 3,422,499.31/x
3. Step 3: Cross multiply
   5,355,123.81x = 7,388,245.87 × 3,422,499.31
4. Step 4: Simplify right side
   5,355,123.81x = 25,286,266,392,185.35
5. Step 5: Solve for x
   x = 25,286,266,392,185.35/5,355,123.81
6. Step 6: Final answer
   x = 4,721,882.68