Finding the Fourth Proportional to 263,788.23, 364,026.50 and 142,929.50

Step by Step Solution

1. Step 1: Write the proportion equation
   263,788.23 : 364,026.50 = 142,929.50 : x
2. Step 2: Convert to fraction form
   263,788.23/364,026.50 = 142,929.50/x
3. Step 3: Cross multiply
   263,788.23x = 364,026.50 × 142,929.50
4. Step 4: Simplify right side
   263,788.23x = 52,030,123,096.97
5. Step 5: Solve for x
   x = 52,030,123,096.97/263,788.23
6. Step 6: Final answer
   x = 197,242.02