Finding the Fourth Proportional to 105,934.77, 146,190.42 and 58,189.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105,934.77 : 146,190.42 = 58,189.05 : x
2. Step 2: Convert to fraction form
   105,934.77/146,190.42 = 58,189.05/x
3. Step 3: Cross multiply
   105,934.77x = 146,190.42 × 58,189.05
4. Step 4: Simplify right side
   105,934.77x = 8,506,681,658.90
5. Step 5: Solve for x
   x = 8,506,681,658.90/105,934.77
6. Step 6: Final answer
   x = 80,301.13