Finding the Fourth Proportional to 12,688.00, 19,025.98 and 3,799.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,688.00 : 19,025.98 = 3,799.89 : x
2. Step 2: Convert to fraction form
   12,688.00/19,025.98 = 3,799.89/x
3. Step 3: Cross multiply
   12,688.00x = 19,025.98 × 3,799.89
4. Step 4: Simplify right side
   12,688.00x = 72,296,621.64
5. Step 5: Solve for x
   x = 72,296,621.64/12,688.00
6. Step 6: Final answer
   x = 5,698.03