Finding the Fourth Proportional to 140,308.48, 193,622.52 and 76,646.56

Step by Step Solution

1. Step 1: Write the proportion equation
   140,308.48 : 193,622.52 = 76,646.56 : x
2. Step 2: Convert to fraction form
   140,308.48/193,622.52 = 76,646.56/x
3. Step 3: Cross multiply
   140,308.48x = 193,622.52 × 76,646.56
4. Step 4: Simplify right side
   140,308.48x = 14,840,500,096.53
5. Step 5: Solve for x
   x = 14,840,500,096.53/140,308.48
6. Step 6: Final answer
   x = 105,770.51