Finding the Fourth Proportional to 76,697.40, 105,839.82 and 43,156.92

Step by Step Solution

1. Step 1: Write the proportion equation
   76,697.40 : 105,839.82 = 43,156.92 : x
2. Step 2: Convert to fraction form
   76,697.40/105,839.82 = 43,156.92/x
3. Step 3: Cross multiply
   76,697.40x = 105,839.82 × 43,156.92
4. Step 4: Simplify right side
   76,697.40x = 4,567,720,644.55
5. Step 5: Solve for x
   x = 4,567,720,644.55/76,697.40
6. Step 6: Final answer
   x = 59,555.09