Finding the Fourth Proportional to 11,378.56, 15,696.32 and 7,843.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,378.56 : 15,696.32 = 7,843.52 : x
2. Step 2: Convert to fraction form
   11,378.56/15,696.32 = 7,843.52/x
3. Step 3: Cross multiply
   11,378.56x = 15,696.32 × 7,843.52
4. Step 4: Simplify right side
   11,378.56x = 123,114,399.85
5. Step 5: Solve for x
   x = 123,114,399.85/11,378.56
6. Step 6: Final answer
   x = 10,819.86