Finding the Fourth Proportional to 3,431,926.67, 5,147,919.50 and 873,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,431,926.67 : 5,147,919.50 = 873,144.50 : x
2. Step 2: Convert to fraction form
   3,431,926.67/5,147,919.50 = 873,144.50/x
3. Step 3: Cross multiply
   3,431,926.67x = 5,147,919.50 × 873,144.50
4. Step 4: Simplify right side
   3,431,926.67x = 4,494,877,567,762.43
5. Step 5: Solve for x
   x = 4,494,877,567,762.43/3,431,926.67
6. Step 6: Final answer
   x = 1,309,724.25