Finding the Fourth Proportional to 5,421,099.47, 8,129,033.34 and 3,147,196.29

Step by Step Solution

1. Step 1: Write the proportion equation
   5,421,099.47 : 8,129,033.34 = 3,147,196.29 : x
2. Step 2: Convert to fraction form
   5,421,099.47/8,129,033.34 = 3,147,196.29/x
3. Step 3: Cross multiply
   5,421,099.47x = 8,129,033.34 × 3,147,196.29
4. Step 4: Simplify right side
   5,421,099.47x = 25,583,663,568,934.31
5. Step 5: Solve for x
   x = 25,583,663,568,934.31/5,421,099.47
6. Step 6: Final answer
   x = 4,719,275.81