Finding the Fourth Proportional to 105,150.82, 145,106.20 and 59,827.80

Step by Step Solution

1. Step 1: Write the proportion equation
   105,150.82 : 145,106.20 = 59,827.80 : x
2. Step 2: Convert to fraction form
   105,150.82/145,106.20 = 59,827.80/x
3. Step 3: Cross multiply
   105,150.82x = 145,106.20 × 59,827.80
4. Step 4: Simplify right side
   105,150.82x = 8,681,384,712.36
5. Step 5: Solve for x
   x = 8,681,384,712.36/105,150.82
6. Step 6: Final answer
   x = 82,561.26