Finding the Fourth Proportional to 105,100.56, 145,043.13 and 59,786.54

Step by Step Solution

1. Step 1: Write the proportion equation
   105,100.56 : 145,043.13 = 59,786.54 : x
2. Step 2: Convert to fraction form
   105,100.56/145,043.13 = 59,786.54/x
3. Step 3: Cross multiply
   105,100.56x = 145,043.13 × 59,786.54
4. Step 4: Simplify right side
   105,100.56x = 8,671,626,168.25
5. Step 5: Solve for x
   x = 8,671,626,168.25/105,100.56
6. Step 6: Final answer
   x = 82,507.90