Finding the Fourth Proportional to 105,870.36, 146,101.35 and 58,126.79

Step by Step Solution

1. Step 1: Write the proportion equation
   105,870.36 : 146,101.35 = 58,126.79 : x
2. Step 2: Convert to fraction form
   105,870.36/146,101.35 = 58,126.79/x
3. Step 3: Cross multiply
   105,870.36x = 146,101.35 × 58,126.79
4. Step 4: Simplify right side
   105,870.36x = 8,492,401,759.66
5. Step 5: Solve for x
   x = 8,492,401,759.66/105,870.36
6. Step 6: Final answer
   x = 80,215.10