Finding the Fourth Proportional to 12,012,221.91, 18,021,404.24 and 3,492,558.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,012,221.91 : 18,021,404.24 = 3,492,558.38 : x
2. Step 2: Convert to fraction form
   12,012,221.91/18,021,404.24 = 3,492,558.38/x
3. Step 3: Cross multiply
   12,012,221.91x = 18,021,404.24 × 3,492,558.38
4. Step 4: Simplify right side
   12,012,221.91x = 62,940,806,290,209.72
5. Step 5: Solve for x
   x = 62,940,806,290,209.72/12,012,221.91
6. Step 6: Final answer
   x = 5,239,730.56