Finding the Fourth Proportional to 140,426.27, 193,787.99 and 76,764.07

Step by Step Solution

1. Step 1: Write the proportion equation
   140,426.27 : 193,787.99 = 76,764.07 : x
2. Step 2: Convert to fraction form
   140,426.27/193,787.99 = 76,764.07/x
3. Step 3: Cross multiply
   140,426.27x = 193,787.99 × 76,764.07
4. Step 4: Simplify right side
   140,426.27x = 14,875,955,407.60
5. Step 5: Solve for x
   x = 14,875,955,407.60/140,426.27
6. Step 6: Final answer
   x = 105,934.27