Finding the Fourth Proportional to 7,185.52, 10,781.72 and 3,722.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,185.52 : 10,781.72 = 3,722.76 : x
2. Step 2: Convert to fraction form
   7,185.52/10,781.72 = 3,722.76/x
3. Step 3: Cross multiply
   7,185.52x = 10,781.72 × 3,722.76
4. Step 4: Simplify right side
   7,185.52x = 40,137,755.95
5. Step 5: Solve for x
   x = 40,137,755.95/7,185.52
6. Step 6: Final answer
   x = 5,585.92