Finding the Fourth Proportional to 140,456.32, 193,830.54 and 76,794.12

Step by Step Solution

1. Step 1: Write the proportion equation
   140,456.32 : 193,830.54 = 76,794.12 : x
2. Step 2: Convert to fraction form
   140,456.32/193,830.54 = 76,794.12/x
3. Step 3: Cross multiply
   140,456.32x = 193,830.54 × 76,794.12
4. Step 4: Simplify right side
   140,456.32x = 14,885,045,748.42
5. Step 5: Solve for x
   x = 14,885,045,748.42/140,456.32
6. Step 6: Final answer
   x = 105,976.33