Finding the Fourth Proportional to 9,186.36, 12,677.27 and 4,994.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,186.36 : 12,677.27 = 4,994.61 : x
2. Step 2: Convert to fraction form
   9,186.36/12,677.27 = 4,994.61/x
3. Step 3: Cross multiply
   9,186.36x = 12,677.27 × 4,994.61
4. Step 4: Simplify right side
   9,186.36x = 63,318,019.51
5. Step 5: Solve for x
   x = 63,318,019.51/9,186.36
6. Step 6: Final answer
   x = 6,892.61