Finding the Fourth Proportional to 13,033.20, 17,985.72 and 7,064.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,033.20 : 17,985.72 = 7,064.88 : x
2. Step 2: Convert to fraction form
   13,033.20/17,985.72 = 7,064.88/x
3. Step 3: Cross multiply
   13,033.20x = 17,985.72 × 7,064.88
4. Step 4: Simplify right side
   13,033.20x = 127,066,953.51
5. Step 5: Solve for x
   x = 127,066,953.51/13,033.20
6. Step 6: Final answer
   x = 9,749.48