Finding the Fourth Proportional to 12,933.40, 17,847.60 and 7,906.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,933.40 : 17,847.60 = 7,906.06 : x
2. Step 2: Convert to fraction form
   12,933.40/17,847.60 = 7,906.06/x
3. Step 3: Cross multiply
   12,933.40x = 17,847.60 × 7,906.06
4. Step 4: Simplify right side
   12,933.40x = 141,104,196.46
5. Step 5: Solve for x
   x = 141,104,196.46/12,933.40
6. Step 6: Final answer
   x = 10,910.06