Finding the Fourth Proportional to 21,796.89, 32,700.18 and 7,945.89

Step by Step Solution

1. Step 1: Write the proportion equation
   21,796.89 : 32,700.18 = 7,945.89 : x
2. Step 2: Convert to fraction form
   21,796.89/32,700.18 = 7,945.89/x
3. Step 3: Cross multiply
   21,796.89x = 32,700.18 × 7,945.89
4. Step 4: Simplify right side
   21,796.89x = 259,832,033.26
5. Step 5: Solve for x
   x = 259,832,033.26/21,796.89
6. Step 6: Final answer
   x = 11,920.60