Finding the Fourth Proportional to 105,819.34, 146,034.88 and 58,074.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,819.34 : 146,034.88 = 58,074.38 : x
2. Step 2: Convert to fraction form
   105,819.34/146,034.88 = 58,074.38/x
3. Step 3: Cross multiply
   105,819.34x = 146,034.88 × 58,074.38
4. Step 4: Simplify right side
   105,819.34x = 8,480,885,114.37
5. Step 5: Solve for x
   x = 8,480,885,114.37/105,819.34
6. Step 6: Final answer
   x = 80,144.94