Finding the Fourth Proportional to 11,300.12, 15,599.60 and 7,945.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,300.12 : 15,599.60 = 7,945.80 : x
2. Step 2: Convert to fraction form
   11,300.12/15,599.60 = 7,945.80/x
3. Step 3: Cross multiply
   11,300.12x = 15,599.60 × 7,945.80
4. Step 4: Simplify right side
   11,300.12x = 123,951,301.68
5. Step 5: Solve for x
   x = 123,951,301.68/11,300.12
6. Step 6: Final answer
   x = 10,969.03