Finding the Fourth Proportional to 64,638, 89,201.52 and 42,282

Step by Step Solution

1. Step 1: Write the proportion equation
   64,638 : 89,201.52 = 42,282 : x
2. Step 2: Convert to fraction form
   64,638/89,201.52 = 42,282/x
3. Step 3: Cross multiply
   64,638x = 89,201.52 × 42,282
4. Step 4: Simplify right side
   64,638x = 3,771,618,668.64
5. Step 5: Solve for x
   x = 3,771,618,668.64/64,638
6. Step 6: Final answer
   x = 58,349.87