Finding the Fourth Proportional to 105,482.37, 145,567.02 and 57,734.69

Step by Step Solution

1. Step 1: Write the proportion equation
   105,482.37 : 145,567.02 = 57,734.69 : x
2. Step 2: Convert to fraction form
   105,482.37/145,567.02 = 57,734.69/x
3. Step 3: Cross multiply
   105,482.37x = 145,567.02 × 57,734.69
4. Step 4: Simplify right side
   105,482.37x = 8,404,266,410.01
5. Step 5: Solve for x
   x = 8,404,266,410.01/105,482.37
6. Step 6: Final answer
   x = 79,674.61