Finding the Fourth Proportional to 64,739.79, 89,340.89 and 37,887.42

Step by Step Solution

1. Step 1: Write the proportion equation
   64,739.79 : 89,340.89 = 37,887.42 : x
2. Step 2: Convert to fraction form
   64,739.79/89,340.89 = 37,887.42/x
3. Step 3: Cross multiply
   64,739.79x = 89,340.89 × 37,887.42
4. Step 4: Simplify right side
   64,739.79x = 3,384,895,770.20
5. Step 5: Solve for x
   x = 3,384,895,770.20/64,739.79
6. Step 6: Final answer
   x = 52,284.62