Finding the Fourth Proportional to 12,805.98, 17,672.79 and 7,500.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,805.98 : 17,672.79 = 7,500.06 : x
2. Step 2: Convert to fraction form
   12,805.98/17,672.79 = 7,500.06/x
3. Step 3: Cross multiply
   12,805.98x = 17,672.79 × 7,500.06
4. Step 4: Simplify right side
   12,805.98x = 132,546,985.37
5. Step 5: Solve for x
   x = 132,546,985.37/12,805.98
6. Step 6: Final answer
   x = 10,350.40