Finding the Fourth Proportional to 21,059.60, 29,061.48 and 11,627.96

Step by Step Solution

1. Step 1: Write the proportion equation
   21,059.60 : 29,061.48 = 11,627.96 : x
2. Step 2: Convert to fraction form
   21,059.60/29,061.48 = 11,627.96/x
3. Step 3: Cross multiply
   21,059.60x = 29,061.48 × 11,627.96
4. Step 4: Simplify right side
   21,059.60x = 337,925,523.53
5. Step 5: Solve for x
   x = 337,925,523.53/21,059.60
6. Step 6: Final answer
   x = 16,046.15