Finding the Fourth Proportional to 105,194.97, 145,149.86 and 59,870.30

Step by Step Solution

1. Step 1: Write the proportion equation
   105,194.97 : 145,149.86 = 59,870.30 : x
2. Step 2: Convert to fraction form
   105,194.97/145,149.86 = 59,870.30/x
3. Step 3: Cross multiply
   105,194.97x = 145,149.86 × 59,870.30
4. Step 4: Simplify right side
   105,194.97x = 8,690,165,663.16
5. Step 5: Solve for x
   x = 8,690,165,663.16/105,194.97
6. Step 6: Final answer
   x = 82,610.09