Finding the Fourth Proportional to 30,796.47, 42,495.21 and 18,054

Step by Step Solution

1. Step 1: Write the proportion equation
   30,796.47 : 42,495.21 = 18,054 : x
2. Step 2: Convert to fraction form
   30,796.47/42,495.21 = 18,054/x
3. Step 3: Cross multiply
   30,796.47x = 42,495.21 × 18,054
4. Step 4: Simplify right side
   30,796.47x = 767,208,521.34
5. Step 5: Solve for x
   x = 767,208,521.34/30,796.47
6. Step 6: Final answer
   x = 24,912.22