Finding the Fourth Proportional to 140,308.62, 193,630.16 and 76,650.53

Step by Step Solution

1. Step 1: Write the proportion equation
   140,308.62 : 193,630.16 = 76,650.53 : x
2. Step 2: Convert to fraction form
   140,308.62/193,630.16 = 76,650.53/x
3. Step 3: Cross multiply
   140,308.62x = 193,630.16 × 76,650.53
4. Step 4: Simplify right side
   140,308.62x = 14,841,853,036.58
5. Step 5: Solve for x
   x = 14,841,853,036.58/140,308.62
6. Step 6: Final answer
   x = 105,780.05