Finding the Fourth Proportional to 140,406.89, 193,752.54 and 79,976.43

Step by Step Solution

1. Step 1: Write the proportion equation
   140,406.89 : 193,752.54 = 79,976.43 : x
2. Step 2: Convert to fraction form
   140,406.89/193,752.54 = 79,976.43/x
3. Step 3: Cross multiply
   140,406.89x = 193,752.54 × 79,976.43
4. Step 4: Simplify right side
   140,406.89x = 15,495,636,452.63
5. Step 5: Solve for x
   x = 15,495,636,452.63/140,406.89
6. Step 6: Final answer
   x = 110,362.37