Finding the Fourth Proportional to 76,692, 105,834.96 and 43,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,692 : 105,834.96 = 43,158.72 : x
2. Step 2: Convert to fraction form
   76,692/105,834.96 = 43,158.72/x
3. Step 3: Cross multiply
   76,692x = 105,834.96 × 43,158.72
4. Step 4: Simplify right side
   76,692x = 4,567,701,404.85
5. Step 5: Solve for x
   x = 4,567,701,404.85/76,692
6. Step 6: Final answer
   x = 59,559.03