Finding the Fourth Proportional to 148,046.63, 204,309.27 and 80,978.63

Step by Step Solution

1. Step 1: Write the proportion equation
   148,046.63 : 204,309.27 = 80,978.63 : x
2. Step 2: Convert to fraction form
   148,046.63/204,309.27 = 80,978.63/x
3. Step 3: Cross multiply
   148,046.63x = 204,309.27 × 80,978.63
4. Step 4: Simplify right side
   148,046.63x = 16,544,684,780.90
5. Step 5: Solve for x
   x = 16,544,684,780.90/148,046.63
6. Step 6: Final answer
   x = 111,753.20