Finding the Fourth Proportional to 3,970,196.61, 5,478,874.32 and 2,227,625.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,970,196.61 : 5,478,874.32 = 2,227,625.99 : x
2. Step 2: Convert to fraction form
   3,970,196.61/5,478,874.32 = 2,227,625.99/x
3. Step 3: Cross multiply
   3,970,196.61x = 5,478,874.32 × 2,227,625.99
4. Step 4: Simplify right side
   3,970,196.61x = 12,204,882,832,680.58
5. Step 5: Solve for x
   x = 12,204,882,832,680.58/3,970,196.61
6. Step 6: Final answer
   x = 3,074,125.55