Finding the Fourth Proportional to 32,643.39, 45,031.29 and 21,319.51

Step by Step Solution

1. Step 1: Write the proportion equation
   32,643.39 : 45,031.29 = 21,319.51 : x
2. Step 2: Convert to fraction form
   32,643.39/45,031.29 = 21,319.51/x
3. Step 3: Cross multiply
   32,643.39x = 45,031.29 × 21,319.51
4. Step 4: Simplify right side
   32,643.39x = 960,044,924.89
5. Step 5: Solve for x
   x = 960,044,924.89/32,643.39
6. Step 6: Final answer
   x = 29,410.09