Finding the Fourth Proportional to 105,813.61, 146,026.50 and 58,067.35

Step by Step Solution

1. Step 1: Write the proportion equation
   105,813.61 : 146,026.50 = 58,067.35 : x
2. Step 2: Convert to fraction form
   105,813.61/146,026.50 = 58,067.35/x
3. Step 3: Cross multiply
   105,813.61x = 146,026.50 × 58,067.35
4. Step 4: Simplify right side
   105,813.61x = 8,479,371,301.96
5. Step 5: Solve for x
   x = 8,479,371,301.96/105,813.61
6. Step 6: Final answer
   x = 80,134.98