Finding the Fourth Proportional to 9,406.73, 12,981.09 and 5,214.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,406.73 : 12,981.09 = 5,214.98 : x
2. Step 2: Convert to fraction form
   9,406.73/12,981.09 = 5,214.98/x
3. Step 3: Cross multiply
   9,406.73x = 12,981.09 × 5,214.98
4. Step 4: Simplify right side
   9,406.73x = 67,696,059.82
5. Step 5: Solve for x
   x = 67,696,059.82/9,406.73
6. Step 6: Final answer
   x = 7,196.56