Finding the Fourth Proportional to 21,384.05, 32,076.63 and 10,136.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,384.05 : 32,076.63 = 10,136.75 : x
2. Step 2: Convert to fraction form
   21,384.05/32,076.63 = 10,136.75/x
3. Step 3: Cross multiply
   21,384.05x = 32,076.63 × 10,136.75
4. Step 4: Simplify right side
   21,384.05x = 325,152,618.77
5. Step 5: Solve for x
   x = 325,152,618.77/21,384.05
6. Step 6: Final answer
   x = 15,205.38