Finding the Fourth Proportional to 80,685.01, 120,768.72 and 43,151.23

Step by Step Solution

1. Step 1: Write the proportion equation
   80,685.01 : 120,768.72 = 43,151.23 : x
2. Step 2: Convert to fraction form
   80,685.01/120,768.72 = 43,151.23/x
3. Step 3: Cross multiply
   80,685.01x = 120,768.72 × 43,151.23
4. Step 4: Simplify right side
   80,685.01x = 5,211,318,813.53
5. Step 5: Solve for x
   x = 5,211,318,813.53/80,685.01
6. Step 6: Final answer
   x = 64,588.44