Finding the Fourth Proportional to 21,351.42, 32,042.86 and 10,264.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,351.42 : 32,042.86 = 10,264.50 : x
2. Step 2: Convert to fraction form
   21,351.42/32,042.86 = 10,264.50/x
3. Step 3: Cross multiply
   21,351.42x = 32,042.86 × 10,264.50
4. Step 4: Simplify right side
   21,351.42x = 328,903,936.47
5. Step 5: Solve for x
   x = 328,903,936.47/21,351.42
6. Step 6: Final answer
   x = 15,404.31