Finding the Fourth Proportional to 12,367,443.20, 18,562,974.60 and 10,572,353.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,367,443.20 : 18,562,974.60 = 10,572,353.60 : x
2. Step 2: Convert to fraction form
   12,367,443.20/18,562,974.60 = 10,572,353.60/x
3. Step 3: Cross multiply
   12,367,443.20x = 18,562,974.60 × 10,572,353.60
4. Step 4: Simplify right side
   12,367,443.20x = 196,254,331,339,018.56
5. Step 5: Solve for x
   x = 196,254,331,339,018.56/12,367,443.20
6. Step 6: Final answer
   x = 15,868,626.05