Finding the Fourth Proportional to 8,217,978.48, 12,328,648.98 and 2,825,928.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,217,978.48 : 12,328,648.98 = 2,825,928.60 : x
2. Step 2: Convert to fraction form
   8,217,978.48/12,328,648.98 = 2,825,928.60/x
3. Step 3: Cross multiply
   8,217,978.48x = 12,328,648.98 × 2,825,928.60
4. Step 4: Simplify right side
   8,217,978.48x = 34,839,881,751,942.83
5. Step 5: Solve for x
   x = 34,839,881,751,942.83/8,217,978.48
6. Step 6: Final answer
   x = 4,239,471.04