Finding the Fourth Proportional to 100,835.48, 139,150.77 and 55,511.73

Step by Step Solution

1. Step 1: Write the proportion equation
   100,835.48 : 139,150.77 = 55,511.73 : x
2. Step 2: Convert to fraction form
   100,835.48/139,150.77 = 55,511.73/x
3. Step 3: Cross multiply
   100,835.48x = 139,150.77 × 55,511.73
4. Step 4: Simplify right side
   100,835.48x = 7,724,499,973.53
5. Step 5: Solve for x
   x = 7,724,499,973.53/100,835.48
6. Step 6: Final answer
   x = 76,604.98