Finding the Fourth Proportional to 9,607.29, 13,258.67 and 5,415.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,607.29 : 13,258.67 = 5,415.81 : x
2. Step 2: Convert to fraction form
   9,607.29/13,258.67 = 5,415.81/x
3. Step 3: Cross multiply
   9,607.29x = 13,258.67 × 5,415.81
4. Step 4: Simplify right side
   9,607.29x = 71,806,437.57
5. Step 5: Solve for x
   x = 71,806,437.57/9,607.29
6. Step 6: Final answer
   x = 7,474.16