Finding the Fourth Proportional to 12,807.00, 19,205.88 and 5,412.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,807.00 : 19,205.88 = 5,412.03 : x
2. Step 2: Convert to fraction form
   12,807.00/19,205.88 = 5,412.03/x
3. Step 3: Cross multiply
   12,807.00x = 19,205.88 × 5,412.03
4. Step 4: Simplify right side
   12,807.00x = 103,942,723.66
5. Step 5: Solve for x
   x = 103,942,723.66/12,807.00
6. Step 6: Final answer
   x = 8,116.09