Finding the Fourth Proportional to 8,736.21, 13,106.37 and 2,892.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,736.21 : 13,106.37 = 2,892.83 : x
2. Step 2: Convert to fraction form
   8,736.21/13,106.37 = 2,892.83/x
3. Step 3: Cross multiply
   8,736.21x = 13,106.37 × 2,892.83
4. Step 4: Simplify right side
   8,736.21x = 37,914,434.80
5. Step 5: Solve for x
   x = 37,914,434.80/8,736.21
6. Step 6: Final answer
   x = 4,339.92