Finding the Fourth Proportional to 9,607.38, 13,258.20 and 5,415.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,607.38 : 13,258.20 = 5,415.63 : x
2. Step 2: Convert to fraction form
   9,607.38/13,258.20 = 5,415.63/x
3. Step 3: Cross multiply
   9,607.38x = 13,258.20 × 5,415.63
4. Step 4: Simplify right side
   9,607.38x = 71,801,439.38
5. Step 5: Solve for x
   x = 71,801,439.38/9,607.38
6. Step 6: Final answer
   x = 7,473.58