Finding the Fourth Proportional to 13,724.77, 18,940.56 and 7,756.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,724.77 : 18,940.56 = 7,756.32 : x
2. Step 2: Convert to fraction form
   13,724.77/18,940.56 = 7,756.32/x
3. Step 3: Cross multiply
   13,724.77x = 18,940.56 × 7,756.32
4. Step 4: Simplify right side
   13,724.77x = 146,909,044.34
5. Step 5: Solve for x
   x = 146,909,044.34/13,724.77
6. Step 6: Final answer
   x = 10,703.93