Finding the Fourth Proportional to 11,985.39, 16,539.46 and 7,511.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,985.39 : 16,539.46 = 7,511.56 : x
2. Step 2: Convert to fraction form
   11,985.39/16,539.46 = 7,511.56/x
3. Step 3: Cross multiply
   11,985.39x = 16,539.46 × 7,511.56
4. Step 4: Simplify right side
   11,985.39x = 124,237,086.03
5. Step 5: Solve for x
   x = 124,237,086.03/11,985.39
6. Step 6: Final answer
   x = 10,365.71