Finding the Fourth Proportional to 105,815.04, 146,026.55 and 58,072.83

Step by Step Solution

1. Step 1: Write the proportion equation
   105,815.04 : 146,026.55 = 58,072.83 : x
2. Step 2: Convert to fraction form
   105,815.04/146,026.55 = 58,072.83/x
3. Step 3: Cross multiply
   105,815.04x = 146,026.55 × 58,072.83
4. Step 4: Simplify right side
   105,815.04x = 8,480,174,723.27
5. Step 5: Solve for x
   x = 8,480,174,723.27/105,815.04
6. Step 6: Final answer
   x = 80,141.49