Finding the Fourth Proportional to 9,607.55, 13,258.16 and 5,358.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,607.55 : 13,258.16 = 5,358.74 : x
2. Step 2: Convert to fraction form
   9,607.55/13,258.16 = 5,358.74/x
3. Step 3: Cross multiply
   9,607.55x = 13,258.16 × 5,358.74
4. Step 4: Simplify right side
   9,607.55x = 71,047,032.32
5. Step 5: Solve for x
   x = 71,047,032.32/9,607.55
6. Step 6: Final answer
   x = 7,394.92