Finding the Fourth Proportional to 64,514.76, 89,028.72 and 37,658.40

Step by Step Solution

1. Step 1: Write the proportion equation
   64,514.76 : 89,028.72 = 37,658.40 : x
2. Step 2: Convert to fraction form
   64,514.76/89,028.72 = 37,658.40/x
3. Step 3: Cross multiply
   64,514.76x = 89,028.72 × 37,658.40
4. Step 4: Simplify right side
   64,514.76x = 3,352,679,149.25
5. Step 5: Solve for x
   x = 3,352,679,149.25/64,514.76
6. Step 6: Final answer
   x = 51,967.63