Finding the Fourth Proportional to 7,003.76, 10,502.40 and 2,618.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.76 : 10,502.40 = 2,618.42 : x
2. Step 2: Convert to fraction form
   7,003.76/10,502.40 = 2,618.42/x
3. Step 3: Cross multiply
   7,003.76x = 10,502.40 × 2,618.42
4. Step 4: Simplify right side
   7,003.76x = 27,499,694.21
5. Step 5: Solve for x
   x = 27,499,694.21/7,003.76
6. Step 6: Final answer
   x = 3,926.42