Finding the Fourth Proportional to 11,928.69, 17,892.14 and 4,906.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,928.69 : 17,892.14 = 4,906.80 : x
2. Step 2: Convert to fraction form
   11,928.69/17,892.14 = 4,906.80/x
3. Step 3: Cross multiply
   11,928.69x = 17,892.14 × 4,906.80
4. Step 4: Simplify right side
   11,928.69x = 87,793,128.02
5. Step 5: Solve for x
   x = 87,793,128.02/11,928.69
6. Step 6: Final answer
   x = 7,359.83