Finding the Fourth Proportional to 101,020.38, 139,438.71 and 58,589.34

Step by Step Solution

1. Step 1: Write the proportion equation
   101,020.38 : 139,438.71 = 58,589.34 : x
2. Step 2: Convert to fraction form
   101,020.38/139,438.71 = 58,589.34/x
3. Step 3: Cross multiply
   101,020.38x = 139,438.71 × 58,589.34
4. Step 4: Simplify right side
   101,020.38x = 8,169,621,989.35
5. Step 5: Solve for x
   x = 8,169,621,989.35/101,020.38
6. Step 6: Final answer
   x = 80,871.03