Finding the Fourth Proportional to 140,300.78, 193,607.82 and 76,626.27

Step by Step Solution

1. Step 1: Write the proportion equation
   140,300.78 : 193,607.82 = 76,626.27 : x
2. Step 2: Convert to fraction form
   140,300.78/193,607.82 = 76,626.27/x
3. Step 3: Cross multiply
   140,300.78x = 193,607.82 × 76,626.27
4. Step 4: Simplify right side
   140,300.78x = 14,835,445,089.43
5. Step 5: Solve for x
   x = 14,835,445,089.43/140,300.78
6. Step 6: Final answer
   x = 105,740.29