Finding the Fourth Proportional to 12,932,453.31, 19,399,138.22 and 3,217,116.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,932,453.31 : 19,399,138.22 = 3,217,116.88 : x
2. Step 2: Convert to fraction form
   12,932,453.31/19,399,138.22 = 3,217,116.88/x
3. Step 3: Cross multiply
   12,932,453.31x = 19,399,138.22 × 3,217,116.88
4. Step 4: Simplify right side
   12,932,453.31x = 62,409,295,025,015.15
5. Step 5: Solve for x
   x = 62,409,295,025,015.15/12,932,453.31
6. Step 6: Final answer
   x = 4,825,789.32