Finding the Fourth Proportional to 16,574,591.30, 24,819,896.55 and 13,215,359.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,574,591.30 : 24,819,896.55 = 13,215,359.30 : x
2. Step 2: Convert to fraction form
   16,574,591.30/24,819,896.55 = 13,215,359.30/x
3. Step 3: Cross multiply
   16,574,591.30x = 24,819,896.55 × 13,215,359.30
4. Step 4: Simplify right side
   16,574,591.30x = 328,003,850,697,080.44
5. Step 5: Solve for x
   x = 328,003,850,697,080.44/16,574,591.30
6. Step 6: Final answer
   x = 19,789,558.90