Finding the Fourth Proportional to 13,108,978.24, 18,091,466.78 and 7,229,762.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,108,978.24 : 18,091,466.78 = 7,229,762.24 : x
2. Step 2: Convert to fraction form
   13,108,978.24/18,091,466.78 = 7,229,762.24/x
3. Step 3: Cross multiply
   13,108,978.24x = 18,091,466.78 × 7,229,762.24
4. Step 4: Simplify right side
   13,108,978.24x = 130,797,003,392,258.41
5. Step 5: Solve for x
   x = 130,797,003,392,258.41/13,108,978.24
6. Step 6: Final answer
   x = 9,977,665.76