Finding the Fourth Proportional to 76,910.72, 106,136.80 and 43,376.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,910.72 : 106,136.80 = 43,376.72 : x
2. Step 2: Convert to fraction form
   76,910.72/106,136.80 = 43,376.72/x
3. Step 3: Cross multiply
   76,910.72x = 106,136.80 × 43,376.72
4. Step 4: Simplify right side
   76,910.72x = 4,603,866,255.30
5. Step 5: Solve for x
   x = 4,603,866,255.30/76,910.72
6. Step 6: Final answer
   x = 59,859.88