Finding the Fourth Proportional to 8,420,136.22, 12,630,120.12 and 2,662,870.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,420,136.22 : 12,630,120.12 = 2,662,870.82 : x
2. Step 2: Convert to fraction form
   8,420,136.22/12,630,120.12 = 2,662,870.82/x
3. Step 3: Cross multiply
   8,420,136.22x = 12,630,120.12 × 2,662,870.82
4. Step 4: Simplify right side
   8,420,136.22x = 33,632,378,320,642.89
5. Step 5: Solve for x
   x = 33,632,378,320,642.89/8,420,136.22
6. Step 6: Final answer
   x = 3,994,279.60