Finding the Fourth Proportional to 76,638.56, 105,760.18 and 43,104.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,638.56 : 105,760.18 = 43,104.56 : x
2. Step 2: Convert to fraction form
   76,638.56/105,760.18 = 43,104.56/x
3. Step 3: Cross multiply
   76,638.56x = 105,760.18 × 43,104.56
4. Step 4: Simplify right side
   76,638.56x = 4,558,746,024.42
5. Step 5: Solve for x
   x = 4,558,746,024.42/76,638.56
6. Step 6: Final answer
   x = 59,483.71