Finding the Fourth Proportional to 101,144.79, 139,632.30 and 73,890.29

Step by Step Solution

1. Step 1: Write the proportion equation
   101,144.79 : 139,632.30 = 73,890.29 : x
2. Step 2: Convert to fraction form
   101,144.79/139,632.30 = 73,890.29/x
3. Step 3: Cross multiply
   101,144.79x = 139,632.30 × 73,890.29
4. Step 4: Simplify right side
   101,144.79x = 10,317,471,489.45
5. Step 5: Solve for x
   x = 10,317,471,489.45/101,144.79
6. Step 6: Final answer
   x = 102,006.95