Finding the Fourth Proportional to 65,679.57, 90,637.91 and 37,385.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,679.57 : 90,637.91 = 37,385.25 : x
2. Step 2: Convert to fraction form
   65,679.57/90,637.91 = 37,385.25/x
3. Step 3: Cross multiply
   65,679.57x = 90,637.91 × 37,385.25
4. Step 4: Simplify right side
   65,679.57x = 3,388,520,737.90
5. Step 5: Solve for x
   x = 3,388,520,737.90/65,679.57
6. Step 6: Final answer
   x = 51,591.70