Finding the Fourth Proportional to 21,227.59, 29,293.76 and 12,275.93

Step by Step Solution

1. Step 1: Write the proportion equation
   21,227.59 : 29,293.76 = 12,275.93 : x
2. Step 2: Convert to fraction form
   21,227.59/29,293.76 = 12,275.93/x
3. Step 3: Cross multiply
   21,227.59x = 29,293.76 × 12,275.93
4. Step 4: Simplify right side
   21,227.59x = 359,608,147.20
5. Step 5: Solve for x
   x = 359,608,147.20/21,227.59
6. Step 6: Final answer
   x = 16,940.60