Finding the Fourth Proportional to 10,390,443.60, 15,587,371.32 and 3,201,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,390,443.60 : 15,587,371.32 = 3,201,978.72 : x
2. Step 2: Convert to fraction form
   10,390,443.60/15,587,371.32 = 3,201,978.72/x
3. Step 3: Cross multiply
   10,390,443.60x = 15,587,371.32 × 3,201,978.72
4. Step 4: Simplify right side
   10,390,443.60x = 49,910,431,267,378.31
5. Step 5: Solve for x
   x = 49,910,431,267,378.31/10,390,443.60
6. Step 6: Final answer
   x = 4,803,493.79