Finding the Fourth Proportional to 190,978.25, 263,457.83 and 127,234.49

Step by Step Solution

1. Step 1: Write the proportion equation
   190,978.25 : 263,457.83 = 127,234.49 : x
2. Step 2: Convert to fraction form
   190,978.25/263,457.83 = 127,234.49/x
3. Step 3: Cross multiply
   190,978.25x = 263,457.83 × 127,234.49
4. Step 4: Simplify right side
   190,978.25x = 33,520,921,637.35
5. Step 5: Solve for x
   x = 33,520,921,637.35/190,978.25
6. Step 6: Final answer
   x = 175,522.20