Finding the Fourth Proportional to 10,201.50, 15,300.90 and 4,279.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,201.50 : 15,300.90 = 4,279.59 : x
2. Step 2: Convert to fraction form
   10,201.50/15,300.90 = 4,279.59/x
3. Step 3: Cross multiply
   10,201.50x = 15,300.90 × 4,279.59
4. Step 4: Simplify right side
   10,201.50x = 65,481,578.63
5. Step 5: Solve for x
   x = 65,481,578.63/10,201.50
6. Step 6: Final answer
   x = 6,418.82