Finding the Fourth Proportional to 21,838.56, 32,748.72 and 10,750.47

Step by Step Solution

1. Step 1: Write the proportion equation
   21,838.56 : 32,748.72 = 10,750.47 : x
2. Step 2: Convert to fraction form
   21,838.56/32,748.72 = 10,750.47/x
3. Step 3: Cross multiply
   21,838.56x = 32,748.72 × 10,750.47
4. Step 4: Simplify right side
   21,838.56x = 352,064,131.90
5. Step 5: Solve for x
   x = 352,064,131.90/21,838.56
6. Step 6: Final answer
   x = 16,121.22