Finding the Fourth Proportional to 105,842.93, 146,064.89 and 58,100.63

Step by Step Solution

1. Step 1: Write the proportion equation
   105,842.93 : 146,064.89 = 58,100.63 : x
2. Step 2: Convert to fraction form
   105,842.93/146,064.89 = 58,100.63/x
3. Step 3: Cross multiply
   105,842.93x = 146,064.89 × 58,100.63
4. Step 4: Simplify right side
   105,842.93x = 8,486,461,544.81
5. Step 5: Solve for x
   x = 8,486,461,544.81/105,842.93
6. Step 6: Final answer
   x = 80,179.77