Finding the Fourth Proportional to 42,962.43, 64,411.23 and 28,175.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,962.43 : 64,411.23 = 28,175.07 : x
2. Step 2: Convert to fraction form
   42,962.43/64,411.23 = 28,175.07/x
3. Step 3: Cross multiply
   42,962.43x = 64,411.23 × 28,175.07
4. Step 4: Simplify right side
   42,962.43x = 1,814,790,914.04
5. Step 5: Solve for x
   x = 1,814,790,914.04/42,962.43
6. Step 6: Final answer
   x = 42,241.35