Finding the Fourth Proportional to 8,436.96, 12,664.72 and 4,540.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,436.96 : 12,664.72 = 4,540.32 : x
2. Step 2: Convert to fraction form
   8,436.96/12,664.72 = 4,540.32/x
3. Step 3: Cross multiply
   8,436.96x = 12,664.72 × 4,540.32
4. Step 4: Simplify right side
   8,436.96x = 57,501,881.51
5. Step 5: Solve for x
   x = 57,501,881.51/8,436.96
6. Step 6: Final answer
   x = 6,815.47