Finding the Fourth Proportional to 9,309.82, 12,848.34 and 5,118.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.82 : 12,848.34 = 5,118.88 : x
2. Step 2: Convert to fraction form
   9,309.82/12,848.34 = 5,118.88/x
3. Step 3: Cross multiply
   9,309.82x = 12,848.34 × 5,118.88
4. Step 4: Simplify right side
   9,309.82x = 65,769,110.66
5. Step 5: Solve for x
   x = 65,769,110.66/9,309.82
6. Step 6: Final answer
   x = 7,064.49