Finding the Fourth Proportional to 105,859.51, 146,089.88 and 58,116.49

Step by Step Solution

1. Step 1: Write the proportion equation
   105,859.51 : 146,089.88 = 58,116.49 : x
2. Step 2: Convert to fraction form
   105,859.51/146,089.88 = 58,116.49/x
3. Step 3: Cross multiply
   105,859.51x = 146,089.88 × 58,116.49
4. Step 4: Simplify right side
   105,859.51x = 8,490,230,612.25
5. Step 5: Solve for x
   x = 8,490,230,612.25/105,859.51
6. Step 6: Final answer
   x = 80,202.82