Finding the Fourth Proportional to 78,392.34, 108,121.82 and 54,233.51

Step by Step Solution

1. Step 1: Write the proportion equation
   78,392.34 : 108,121.82 = 54,233.51 : x
2. Step 2: Convert to fraction form
   78,392.34/108,121.82 = 54,233.51/x
3. Step 3: Cross multiply
   78,392.34x = 108,121.82 × 54,233.51
4. Step 4: Simplify right side
   78,392.34x = 5,863,824,994.41
5. Step 5: Solve for x
   x = 5,863,824,994.41/78,392.34
6. Step 6: Final answer
   x = 74,800.99