Finding the Fourth Proportional to 54,111.47, 74,672.43 and 30,238.34

Step by Step Solution

1. Step 1: Write the proportion equation
   54,111.47 : 74,672.43 = 30,238.34 : x
2. Step 2: Convert to fraction form
   54,111.47/74,672.43 = 30,238.34/x
3. Step 3: Cross multiply
   54,111.47x = 74,672.43 × 30,238.34
4. Step 4: Simplify right side
   54,111.47x = 2,257,970,326.97
5. Step 5: Solve for x
   x = 2,257,970,326.97/54,111.47
6. Step 6: Final answer
   x = 41,728.13