Finding the Fourth Proportional to 101,673.42, 140,309.34 and 56,354.34

Step by Step Solution

1. Step 1: Write the proportion equation
   101,673.42 : 140,309.34 = 56,354.34 : x
2. Step 2: Convert to fraction form
   101,673.42/140,309.34 = 56,354.34/x
3. Step 3: Cross multiply
   101,673.42x = 140,309.34 × 56,354.34
4. Step 4: Simplify right side
   101,673.42x = 7,907,040,251.54
5. Step 5: Solve for x
   x = 7,907,040,251.54/101,673.42
6. Step 6: Final answer
   x = 77,769.00