Finding the Fourth Proportional to 9,618.40, 13,270.50 and 9,301.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,618.40 : 13,270.50 = 9,301.29 : x
2. Step 2: Convert to fraction form
   9,618.40/13,270.50 = 9,301.29/x
3. Step 3: Cross multiply
   9,618.40x = 13,270.50 × 9,301.29
4. Step 4: Simplify right side
   9,618.40x = 123,432,719.18
5. Step 5: Solve for x
   x = 123,432,719.18/9,618.40
6. Step 6: Final answer
   x = 12,832.98