Finding the Fourth Proportional to 12,808.18, 17,676.93 and 7,507.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,808.18 : 17,676.93 = 7,507.54 : x
2. Step 2: Convert to fraction form
   12,808.18/17,676.93 = 7,507.54/x
3. Step 3: Cross multiply
   12,808.18x = 17,676.93 × 7,507.54
4. Step 4: Simplify right side
   12,808.18x = 132,710,259.05
5. Step 5: Solve for x
   x = 132,710,259.05/12,808.18
6. Step 6: Final answer
   x = 10,361.37