Finding the Fourth Proportional to 64,784.40, 89,371.92 and 37,910.42

Step by Step Solution

1. Step 1: Write the proportion equation
   64,784.40 : 89,371.92 = 37,910.42 : x
2. Step 2: Convert to fraction form
   64,784.40/89,371.92 = 37,910.42/x
3. Step 3: Cross multiply
   64,784.40x = 89,371.92 × 37,910.42
4. Step 4: Simplify right side
   64,784.40x = 3,388,127,023.41
5. Step 5: Solve for x
   x = 3,388,127,023.41/64,784.40
6. Step 6: Final answer
   x = 52,298.51