Finding the Fourth Proportional to 76,638.54, 105,760.17 and 43,104.54

Step by Step Solution

1. Step 1: Write the proportion equation
   76,638.54 : 105,760.17 = 43,104.54 : x
2. Step 2: Convert to fraction form
   76,638.54/105,760.17 = 43,104.54/x
3. Step 3: Cross multiply
   76,638.54x = 105,760.17 × 43,104.54
4. Step 4: Simplify right side
   76,638.54x = 4,558,743,478.17
5. Step 5: Solve for x
   x = 4,558,743,478.17/76,638.54
6. Step 6: Final answer
   x = 59,483.69