Finding the Fourth Proportional to 3,422,663.40, 5,126,613.72 and 3,221,442.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,422,663.40 : 5,126,613.72 = 3,221,442.12 : x
2. Step 2: Convert to fraction form
   3,422,663.40/5,126,613.72 = 3,221,442.12/x
3. Step 3: Cross multiply
   3,422,663.40x = 5,126,613.72 × 3,221,442.12
4. Step 4: Simplify right side
   3,422,663.40x = 16,515,089,370,577.89
5. Step 5: Solve for x
   x = 16,515,089,370,577.89/3,422,663.40
6. Step 6: Final answer
   x = 4,825,215.76