Finding the Fourth Proportional to 21,784.50, 32,681.61 and 7,933.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,784.50 : 32,681.61 = 7,933.50 : x
2. Step 2: Convert to fraction form
   21,784.50/32,681.61 = 7,933.50/x
3. Step 3: Cross multiply
   21,784.50x = 32,681.61 × 7,933.50
4. Step 4: Simplify right side
   21,784.50x = 259,279,552.94
5. Step 5: Solve for x
   x = 259,279,552.94/21,784.50
6. Step 6: Final answer
   x = 11,902.02