Finding the Fourth Proportional to 21,667.86, 32,506.65 and 7,816.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,667.86 : 32,506.65 = 7,816.86 : x
2. Step 2: Convert to fraction form
   21,667.86/32,506.65 = 7,816.86/x
3. Step 3: Cross multiply
   21,667.86x = 32,506.65 × 7,816.86
4. Step 4: Simplify right side
   21,667.86x = 254,099,932.12
5. Step 5: Solve for x
   x = 254,099,932.12/21,667.86
6. Step 6: Final answer
   x = 11,727.04