Finding the Fourth Proportional to 8,572.51, 12,858.79 and 3,022.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,572.51 : 12,858.79 = 3,022.82 : x
2. Step 2: Convert to fraction form
   8,572.51/12,858.79 = 3,022.82/x
3. Step 3: Cross multiply
   8,572.51x = 12,858.79 × 3,022.82
4. Step 4: Simplify right side
   8,572.51x = 38,869,807.59
5. Step 5: Solve for x
   x = 38,869,807.59/8,572.51
6. Step 6: Final answer
   x = 4,534.24