Finding the Fourth Proportional to 12,012,228.87, 18,021,414.65 and 3,492,565.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,012,228.87 : 18,021,414.65 = 3,492,565.31 : x
2. Step 2: Convert to fraction form
   12,012,228.87/18,021,414.65 = 3,492,565.31/x
3. Step 3: Cross multiply
   12,012,228.87x = 18,021,414.65 × 3,492,565.31
4. Step 4: Simplify right side
   12,012,228.87x = 62,940,967,536,145.89
5. Step 5: Solve for x
   x = 62,940,967,536,145.89/12,012,228.87
6. Step 6: Final answer
   x = 5,239,740.95