Finding the Fourth Proportional to 105,123.56, 145,072.74 and 59,800.04

Step by Step Solution

1. Step 1: Write the proportion equation
   105,123.56 : 145,072.74 = 59,800.04 : x
2. Step 2: Convert to fraction form
   105,123.56/145,072.74 = 59,800.04/x
3. Step 3: Cross multiply
   105,123.56x = 145,072.74 × 59,800.04
4. Step 4: Simplify right side
   105,123.56x = 8,675,355,654.91
5. Step 5: Solve for x
   x = 8,675,355,654.91/105,123.56
6. Step 6: Final answer
   x = 82,525.32