Finding the Fourth Proportional to 21,062.32, 29,065.89 and 11,630.88

Step by Step Solution

1. Step 1: Write the proportion equation
   21,062.32 : 29,065.89 = 11,630.88 : x
2. Step 2: Convert to fraction form
   21,062.32/29,065.89 = 11,630.88/x
3. Step 3: Cross multiply
   21,062.32x = 29,065.89 × 11,630.88
4. Step 4: Simplify right side
   21,062.32x = 338,061,878.68
5. Step 5: Solve for x
   x = 338,061,878.68/21,062.32
6. Step 6: Final answer
   x = 16,050.55