Finding the Fourth Proportional to 20,832.32, 31,250.56 and 7,683

Step by Step Solution

1. Step 1: Write the proportion equation
   20,832.32 : 31,250.56 = 7,683 : x
2. Step 2: Convert to fraction form
   20,832.32/31,250.56 = 7,683/x
3. Step 3: Cross multiply
   20,832.32x = 31,250.56 × 7,683
4. Step 4: Simplify right side
   20,832.32x = 240,098,052.48
5. Step 5: Solve for x
   x = 240,098,052.48/20,832.32
6. Step 6: Final answer
   x = 11,525.27