Finding the Fourth Proportional to 9,607.99, 13,258.56 and 5,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,607.99 : 13,258.56 = 5,359.50 : x
2. Step 2: Convert to fraction form
   9,607.99/13,258.56 = 5,359.50/x
3. Step 3: Cross multiply
   9,607.99x = 13,258.56 × 5,359.50
4. Step 4: Simplify right side
   9,607.99x = 71,059,252.32
5. Step 5: Solve for x
   x = 71,059,252.32/9,607.99
6. Step 6: Final answer
   x = 7,395.85