Finding the Fourth Proportional to 8,736.19, 13,106.34 and 2,892.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,736.19 : 13,106.34 = 2,892.81 : x
2. Step 2: Convert to fraction form
   8,736.19/13,106.34 = 2,892.81/x
3. Step 3: Cross multiply
   8,736.19x = 13,106.34 × 2,892.81
4. Step 4: Simplify right side
   8,736.19x = 37,914,200.56
5. Step 5: Solve for x
   x = 37,914,200.56/8,736.19
6. Step 6: Final answer
   x = 4,339.90