Finding the Fourth Proportional to 105,814.57, 146,023.71 and 58,068.71

Step by Step Solution

1. Step 1: Write the proportion equation
   105,814.57 : 146,023.71 = 58,068.71 : x
2. Step 2: Convert to fraction form
   105,814.57/146,023.71 = 58,068.71/x
3. Step 3: Cross multiply
   105,814.57x = 146,023.71 × 58,068.71
4. Step 4: Simplify right side
   105,814.57x = 8,479,408,178.77
5. Step 5: Solve for x
   x = 8,479,408,178.77/105,814.57
6. Step 6: Final answer
   x = 80,134.60