Finding the Fourth Proportional to 9,598.68, 13,246.56 and 5,407.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,598.68 : 13,246.56 = 5,407.20 : x
2. Step 2: Convert to fraction form
   9,598.68/13,246.56 = 5,407.20/x
3. Step 3: Cross multiply
   9,598.68x = 13,246.56 × 5,407.20
4. Step 4: Simplify right side
   9,598.68x = 71,626,799.23
5. Step 5: Solve for x
   x = 71,626,799.23/9,598.68
6. Step 6: Final answer
   x = 7,462.15