Finding the Fourth Proportional to 64,783.90, 89,371.23 and 37,909.92

Step by Step Solution

1. Step 1: Write the proportion equation
   64,783.90 : 89,371.23 = 37,909.92 : x
2. Step 2: Convert to fraction form
   64,783.90/89,371.23 = 37,909.92/x
3. Step 3: Cross multiply
   64,783.90x = 89,371.23 × 37,909.92
4. Step 4: Simplify right side
   64,783.90x = 3,388,055,956.17
5. Step 5: Solve for x
   x = 3,388,055,956.17/64,783.90
6. Step 6: Final answer
   x = 52,297.81