Finding the Fourth Proportional to 30,664.47, 42,312.98 and 17,233.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,664.47 : 42,312.98 = 17,233.56 : x
2. Step 2: Convert to fraction form
   30,664.47/42,312.98 = 17,233.56/x
3. Step 3: Cross multiply
   30,664.47x = 42,312.98 × 17,233.56
4. Step 4: Simplify right side
   30,664.47x = 729,203,322.69
5. Step 5: Solve for x
   x = 729,203,322.69/30,664.47
6. Step 6: Final answer
   x = 23,780.07