Finding the Fourth Proportional to 12,431,289.02, 18,645,162.06 and 3,911,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,431,289.02 : 18,645,162.06 = 3,911,404.10 : x
2. Step 2: Convert to fraction form
   12,431,289.02/18,645,162.06 = 3,911,404.10/x
3. Step 3: Cross multiply
   12,431,289.02x = 18,645,162.06 × 3,911,404.10
4. Step 4: Simplify right side
   12,431,289.02x = 72,928,763,326,648.44
5. Step 5: Solve for x
   x = 72,928,763,326,648.44/12,431,289.02
6. Step 6: Final answer
   x = 5,866,548.77