Finding the Fourth Proportional to 105,819.67, 146,026.54 and 58,073.81

Step by Step Solution

1. Step 1: Write the proportion equation
   105,819.67 : 146,026.54 = 58,073.81 : x
2. Step 2: Convert to fraction form
   105,819.67/146,026.54 = 58,073.81/x
3. Step 3: Cross multiply
   105,819.67x = 146,026.54 × 58,073.81
4. Step 4: Simplify right side
   105,819.67x = 8,480,317,538.92
5. Step 5: Solve for x
   x = 8,480,317,538.92/105,819.67
6. Step 6: Final answer
   x = 80,139.33