Finding the Fourth Proportional to 101,958.22, 140,724.83 and 56,651.77

Step by Step Solution

1. Step 1: Write the proportion equation
   101,958.22 : 140,724.83 = 56,651.77 : x
2. Step 2: Convert to fraction form
   101,958.22/140,724.83 = 56,651.77/x
3. Step 3: Cross multiply
   101,958.22x = 140,724.83 × 56,651.77
4. Step 4: Simplify right side
   101,958.22x = 7,972,310,492.27
5. Step 5: Solve for x
   x = 7,972,310,492.27/101,958.22
6. Step 6: Final answer
   x = 78,191.94