Finding the Fourth Proportional to 7,418.72, 10,237.68 and 4,106.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,418.72 : 10,237.68 = 4,106.72 : x
2. Step 2: Convert to fraction form
   7,418.72/10,237.68 = 4,106.72/x
3. Step 3: Cross multiply
   7,418.72x = 10,237.68 × 4,106.72
4. Step 4: Simplify right side
   7,418.72x = 42,043,285.21
5. Step 5: Solve for x
   x = 42,043,285.21/7,418.72
6. Step 6: Final answer
   x = 5,667.19