Finding the Fourth Proportional to 76,170.84, 105,116.04 and 42,636.84

Step by Step Solution

1. Step 1: Write the proportion equation
   76,170.84 : 105,116.04 = 42,636.84 : x
2. Step 2: Convert to fraction form
   76,170.84/105,116.04 = 42,636.84/x
3. Step 3: Cross multiply
   76,170.84x = 105,116.04 × 42,636.84
4. Step 4: Simplify right side
   76,170.84x = 4,481,815,778.91
5. Step 5: Solve for x
   x = 4,481,815,778.91/76,170.84
6. Step 6: Final answer
   x = 58,839.00