Finding the Fourth Proportional to 188,734.50, 283,145.50 and 64,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   188,734.50 : 283,145.50 = 64,075.50 : x
2. Step 2: Convert to fraction form
   188,734.50/283,145.50 = 64,075.50/x
3. Step 3: Cross multiply
   188,734.50x = 283,145.50 × 64,075.50
4. Step 4: Simplify right side
   188,734.50x = 18,142,689,485.25
5. Step 5: Solve for x
   x = 18,142,689,485.25/188,734.50
6. Step 6: Final answer
   x = 96,128.10