Finding the Fourth Proportional to 3,875.33, 5,811.98 and 2,642.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,875.33 : 5,811.98 = 2,642.51 : x
2. Step 2: Convert to fraction form
   3,875.33/5,811.98 = 2,642.51/x
3. Step 3: Cross multiply
   3,875.33x = 5,811.98 × 2,642.51
4. Step 4: Simplify right side
   3,875.33x = 15,358,173.00
5. Step 5: Solve for x
   x = 15,358,173.00/3,875.33
6. Step 6: Final answer
   x = 3,963.07