Finding the Fourth Proportional to 10,724.62, 14,789.61 and 7,536.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,724.62 : 14,789.61 = 7,536.90 : x
2. Step 2: Convert to fraction form
   10,724.62/14,789.61 = 7,536.90/x
3. Step 3: Cross multiply
   10,724.62x = 14,789.61 × 7,536.90
4. Step 4: Simplify right side
   10,724.62x = 111,467,811.61
5. Step 5: Solve for x
   x = 111,467,811.61/10,724.62
6. Step 6: Final answer
   x = 10,393.64