Finding the Fourth Proportional to 76,685.46, 105,827.52 and 42,694.62

Step by Step Solution

1. Step 1: Write the proportion equation
   76,685.46 : 105,827.52 = 42,694.62 : x
2. Step 2: Convert to fraction form
   76,685.46/105,827.52 = 42,694.62/x
3. Step 3: Cross multiply
   76,685.46x = 105,827.52 × 42,694.62
4. Step 4: Simplify right side
   76,685.46x = 4,518,265,751.94
5. Step 5: Solve for x
   x = 4,518,265,751.94/76,685.46
6. Step 6: Final answer
   x = 58,919.46