Finding the Fourth Proportional to 101,086.29, 139,453.92 and 58,620.18

Step by Step Solution

1. Step 1: Write the proportion equation
   101,086.29 : 139,453.92 = 58,620.18 : x
2. Step 2: Convert to fraction form
   101,086.29/139,453.92 = 58,620.18/x
3. Step 3: Cross multiply
   101,086.29x = 139,453.92 × 58,620.18
4. Step 4: Simplify right side
   101,086.29x = 8,174,813,892.11
5. Step 5: Solve for x
   x = 8,174,813,892.11/101,086.29
6. Step 6: Final answer
   x = 80,869.66