Finding the Fourth Proportional to 3,712.55, 5,118.59 and 2,651.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,712.55 : 5,118.59 = 2,651.58 : x
2. Step 2: Convert to fraction form
   3,712.55/5,118.59 = 2,651.58/x
3. Step 3: Cross multiply
   3,712.55x = 5,118.59 × 2,651.58
4. Step 4: Simplify right side
   3,712.55x = 13,572,357.50
5. Step 5: Solve for x
   x = 13,572,357.50/3,712.55
6. Step 6: Final answer
   x = 3,655.81