Finding the Fourth Proportional to 105,814.98, 146,019.87 and 58,067.37

Step by Step Solution

1. Step 1: Write the proportion equation
   105,814.98 : 146,019.87 = 58,067.37 : x
2. Step 2: Convert to fraction form
   105,814.98/146,019.87 = 58,067.37/x
3. Step 3: Cross multiply
   105,814.98x = 146,019.87 × 58,067.37
4. Step 4: Simplify right side
   105,814.98x = 8,478,989,818.64
5. Step 5: Solve for x
   x = 8,478,989,818.64/105,814.98
6. Step 6: Final answer
   x = 80,130.34