Finding the Fourth Proportional to 140,086.16, 193,321.32 and 76,424.48

Step by Step Solution

1. Step 1: Write the proportion equation
   140,086.16 : 193,321.32 = 76,424.48 : x
2. Step 2: Convert to fraction form
   140,086.16/193,321.32 = 76,424.48/x
3. Step 3: Cross multiply
   140,086.16x = 193,321.32 × 76,424.48
4. Step 4: Simplify right side
   140,086.16x = 14,774,481,353.91
5. Step 5: Solve for x
   x = 14,774,481,353.91/140,086.16
6. Step 6: Final answer
   x = 105,467.10