Finding the Fourth Proportional to 76,682.52, 105,819.81 and 42,691.01

Step by Step Solution

1. Step 1: Write the proportion equation
   76,682.52 : 105,819.81 = 42,691.01 : x
2. Step 2: Convert to fraction form
   76,682.52/105,819.81 = 42,691.01/x
3. Step 3: Cross multiply
   76,682.52x = 105,819.81 × 42,691.01
4. Step 4: Simplify right side
   76,682.52x = 4,517,554,037.81
5. Step 5: Solve for x
   x = 4,517,554,037.81/76,682.52
6. Step 6: Final answer
   x = 58,912.44