Finding the Fourth Proportional to 13,036.24, 17,988.48 and 7,730.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,036.24 : 17,988.48 = 7,730.08 : x
2. Step 2: Convert to fraction form
   13,036.24/17,988.48 = 7,730.08/x
3. Step 3: Cross multiply
   13,036.24x = 17,988.48 × 7,730.08
4. Step 4: Simplify right side
   13,036.24x = 139,052,389.48
5. Step 5: Solve for x
   x = 139,052,389.48/13,036.24
6. Step 6: Final answer
   x = 10,666.60