Finding the Fourth Proportional to 32,729.28, 49,111.52 and 13,008

Step by Step Solution

1. Step 1: Write the proportion equation
   32,729.28 : 49,111.52 = 13,008 : x
2. Step 2: Convert to fraction form
   32,729.28/49,111.52 = 13,008/x
3. Step 3: Cross multiply
   32,729.28x = 49,111.52 × 13,008
4. Step 4: Simplify right side
   32,729.28x = 638,842,652.16
5. Step 5: Solve for x
   x = 638,842,652.16/32,729.28
6. Step 6: Final answer
   x = 19,518.99