Finding the Fourth Proportional to 76,591.54, 105,695.31 and 43,057.54

Step by Step Solution

1. Step 1: Write the proportion equation
   76,591.54 : 105,695.31 = 43,057.54 : x
2. Step 2: Convert to fraction form
   76,591.54/105,695.31 = 43,057.54/x
3. Step 3: Cross multiply
   76,591.54x = 105,695.31 × 43,057.54
4. Step 4: Simplify right side
   76,591.54x = 4,550,980,038.14
5. Step 5: Solve for x
   x = 4,550,980,038.14/76,591.54
6. Step 6: Final answer
   x = 59,418.83