Finding the Fourth Proportional to 12,124.99, 16,740.78 and 7,589.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,124.99 : 16,740.78 = 7,589.50 : x
2. Step 2: Convert to fraction form
   12,124.99/16,740.78 = 7,589.50/x
3. Step 3: Cross multiply
   12,124.99x = 16,740.78 × 7,589.50
4. Step 4: Simplify right side
   12,124.99x = 127,054,079.50
5. Step 5: Solve for x
   x = 127,054,079.50/12,124.99
6. Step 6: Final answer
   x = 10,478.69