Finding the Fourth Proportional to 9,406.67, 12,976.61 and 7,914.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,406.67 : 12,976.61 = 7,914.04 : x
2. Step 2: Convert to fraction form
   9,406.67/12,976.61 = 7,914.04/x
3. Step 3: Cross multiply
   9,406.67x = 12,976.61 × 7,914.04
4. Step 4: Simplify right side
   9,406.67x = 102,697,338.59
5. Step 5: Solve for x
   x = 102,697,338.59/9,406.67
6. Step 6: Final answer
   x = 10,917.51