Finding the Fourth Proportional to 9,187.37, 12,680.83 and 5,210.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,187.37 : 12,680.83 = 5,210.81 : x
2. Step 2: Convert to fraction form
   9,187.37/12,680.83 = 5,210.81/x
3. Step 3: Cross multiply
   9,187.37x = 12,680.83 × 5,210.81
4. Step 4: Simplify right side
   9,187.37x = 66,077,369.72
5. Step 5: Solve for x
   x = 66,077,369.72/9,187.37
6. Step 6: Final answer
   x = 7,192.20