Finding the Fourth Proportional to 6,321,962.72, 8,724,330.78 and 3,421,352.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,321,962.72 : 8,724,330.78 = 3,421,352.72 : x
2. Step 2: Convert to fraction form
   6,321,962.72/8,724,330.78 = 3,421,352.72/x
3. Step 3: Cross multiply
   6,321,962.72x = 8,724,330.78 × 3,421,352.72
4. Step 4: Simplify right side
   6,321,962.72x = 29,849,012,844,332.72
5. Step 5: Solve for x
   x = 29,849,012,844,332.72/6,321,962.72
6. Step 6: Final answer
   x = 4,721,478.78