Finding the Fourth Proportional to 21,941.91, 30,279.63 and 12,510.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,941.91 : 30,279.63 = 12,510.27 : x
2. Step 2: Convert to fraction form
   21,941.91/30,279.63 = 12,510.27/x
3. Step 3: Cross multiply
   21,941.91x = 30,279.63 × 12,510.27
4. Step 4: Simplify right side
   21,941.91x = 378,806,346.80
5. Step 5: Solve for x
   x = 378,806,346.80/21,941.91
6. Step 6: Final answer
   x = 17,264.06