Finding the Fourth Proportional to 80,131.78, 120,153.30 and 32,780.14

Step by Step Solution

1. Step 1: Write the proportion equation
   80,131.78 : 120,153.30 = 32,780.14 : x
2. Step 2: Convert to fraction form
   80,131.78/120,153.30 = 32,780.14/x
3. Step 3: Cross multiply
   80,131.78x = 120,153.30 × 32,780.14
4. Step 4: Simplify right side
   80,131.78x = 3,938,641,818.00
5. Step 5: Solve for x
   x = 3,938,641,818.00/80,131.78
6. Step 6: Final answer
   x = 49,152.06