Finding the Fourth Proportional to 140,304.42, 193,620.06 and 76,642.29

Step by Step Solution

1. Step 1: Write the proportion equation
   140,304.42 : 193,620.06 = 76,642.29 : x
2. Step 2: Convert to fraction form
   140,304.42/193,620.06 = 76,642.29/x
3. Step 3: Cross multiply
   140,304.42x = 193,620.06 × 76,642.29
4. Step 4: Simplify right side
   140,304.42x = 14,839,484,788.34
5. Step 5: Solve for x
   x = 14,839,484,788.34/140,304.42
6. Step 6: Final answer
   x = 105,766.34