Finding the Fourth Proportional to 21,481.78, 29,642.86 and 12,048.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,481.78 : 29,642.86 = 12,048.52 : x
2. Step 2: Convert to fraction form
   21,481.78/29,642.86 = 12,048.52/x
3. Step 3: Cross multiply
   21,481.78x = 29,642.86 × 12,048.52
4. Step 4: Simplify right side
   21,481.78x = 357,152,591.57
5. Step 5: Solve for x
   x = 357,152,591.57/21,481.78
6. Step 6: Final answer
   x = 16,625.84