Finding the Fourth Proportional to 16,039.69, 24,069.56 and 7,720.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,039.69 : 24,069.56 = 7,720.58 : x
2. Step 2: Convert to fraction form
   16,039.69/24,069.56 = 7,720.58/x
3. Step 3: Cross multiply
   16,039.69x = 24,069.56 × 7,720.58
4. Step 4: Simplify right side
   16,039.69x = 185,830,985.12
5. Step 5: Solve for x
   x = 185,830,985.12/16,039.69
6. Step 6: Final answer
   x = 11,585.70