Finding the Fourth Proportional to 80,131.80, 120,256.76 and 38,012.01

Step by Step Solution

1. Step 1: Write the proportion equation
   80,131.80 : 120,256.76 = 38,012.01 : x
2. Step 2: Convert to fraction form
   80,131.80/120,256.76 = 38,012.01/x
3. Step 3: Cross multiply
   80,131.80x = 120,256.76 × 38,012.01
4. Step 4: Simplify right side
   80,131.80x = 4,571,200,807.75
5. Step 5: Solve for x
   x = 4,571,200,807.75/80,131.80
6. Step 6: Final answer
   x = 57,046.02