Finding the Fourth Proportional to 21,059.47, 29,061.30 and 11,627.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,059.47 : 29,061.30 = 11,627.83 : x
2. Step 2: Convert to fraction form
   21,059.47/29,061.30 = 11,627.83/x
3. Step 3: Cross multiply
   21,059.47x = 29,061.30 × 11,627.83
4. Step 4: Simplify right side
   21,059.47x = 337,919,783.33
5. Step 5: Solve for x
   x = 337,919,783.33/21,059.47
6. Step 6: Final answer
   x = 16,045.98