Finding the Fourth Proportional to 6,699.98, 10,047.39 and 3,187.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,699.98 : 10,047.39 = 3,187.28 : x
2. Step 2: Convert to fraction form
   6,699.98/10,047.39 = 3,187.28/x
3. Step 3: Cross multiply
   6,699.98x = 10,047.39 × 3,187.28
4. Step 4: Simplify right side
   6,699.98x = 32,023,783.01
5. Step 5: Solve for x
   x = 32,023,783.01/6,699.98
6. Step 6: Final answer
   x = 4,779.69