Finding the Fourth Proportional to 21,664.86, 32,505.93 and 7,814.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,664.86 : 32,505.93 = 7,814.94 : x
2. Step 2: Convert to fraction form
   21,664.86/32,505.93 = 7,814.94/x
3. Step 3: Cross multiply
   21,664.86x = 32,505.93 × 7,814.94
4. Step 4: Simplify right side
   21,664.86x = 254,031,892.59
5. Step 5: Solve for x
   x = 254,031,892.59/21,664.86
6. Step 6: Final answer
   x = 11,725.53