Finding the Fourth Proportional to 101,057.81, 139,466.15 and 58,050.77

Step by Step Solution

1. Step 1: Write the proportion equation
   101,057.81 : 139,466.15 = 58,050.77 : x
2. Step 2: Convert to fraction form
   101,057.81/139,466.15 = 58,050.77/x
3. Step 3: Cross multiply
   101,057.81x = 139,466.15 × 58,050.77
4. Step 4: Simplify right side
   101,057.81x = 8,096,116,408.85
5. Step 5: Solve for x
   x = 8,096,116,408.85/101,057.81
6. Step 6: Final answer
   x = 80,113.72