Finding the Fourth Proportional to 9,578.32, 13,219.56 and 5,601.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,578.32 : 13,219.56 = 5,601.76 : x
2. Step 2: Convert to fraction form
   9,578.32/13,219.56 = 5,601.76/x
3. Step 3: Cross multiply
   9,578.32x = 13,219.56 × 5,601.76
4. Step 4: Simplify right side
   9,578.32x = 74,052,802.43
5. Step 5: Solve for x
   x = 74,052,802.43/9,578.32
6. Step 6: Final answer
   x = 7,731.29