Finding the Fourth Proportional to 21,936.86, 32,909.73 and 7,141.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,936.86 : 32,909.73 = 7,141.81 : x
2. Step 2: Convert to fraction form
   21,936.86/32,909.73 = 7,141.81/x
3. Step 3: Cross multiply
   21,936.86x = 32,909.73 × 7,141.81
4. Step 4: Simplify right side
   21,936.86x = 235,035,038.81
5. Step 5: Solve for x
   x = 235,035,038.81/21,936.86
6. Step 6: Final answer
   x = 10,714.16