Finding the Fourth Proportional to 7,003.68, 10,502.55 and 2,618.07

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.68 : 10,502.55 = 2,618.07 : x
2. Step 2: Convert to fraction form
   7,003.68/10,502.55 = 2,618.07/x
3. Step 3: Cross multiply
   7,003.68x = 10,502.55 × 2,618.07
4. Step 4: Simplify right side
   7,003.68x = 27,496,411.08
5. Step 5: Solve for x
   x = 27,496,411.08/7,003.68
6. Step 6: Final answer
   x = 3,925.99