Finding the Fourth Proportional to 82,482.84, 123,614.10 and 42,957.08

Step by Step Solution

1. Step 1: Write the proportion equation
   82,482.84 : 123,614.10 = 42,957.08 : x
2. Step 2: Convert to fraction form
   82,482.84/123,614.10 = 42,957.08/x
3. Step 3: Cross multiply
   82,482.84x = 123,614.10 × 42,957.08
4. Step 4: Simplify right side
   82,482.84x = 5,310,100,782.83
5. Step 5: Solve for x
   x = 5,310,100,782.83/82,482.84
6. Step 6: Final answer
   x = 64,378.25