Finding the Fourth Proportional to 76,682.53, 105,819.29 and 43,142.05

Step by Step Solution

1. Step 1: Write the proportion equation
   76,682.53 : 105,819.29 = 43,142.05 : x
2. Step 2: Convert to fraction form
   76,682.53/105,819.29 = 43,142.05/x
3. Step 3: Cross multiply
   76,682.53x = 105,819.29 × 43,142.05
4. Step 4: Simplify right side
   76,682.53x = 4,565,260,571.05
5. Step 5: Solve for x
   x = 4,565,260,571.05/76,682.53
6. Step 6: Final answer
   x = 59,534.56