Finding the Fourth Proportional to 65,816.45, 90,818.88 and 37,134.47

Step by Step Solution

1. Step 1: Write the proportion equation
   65,816.45 : 90,818.88 = 37,134.47 : x
2. Step 2: Convert to fraction form
   65,816.45/90,818.88 = 37,134.47/x
3. Step 3: Cross multiply
   65,816.45x = 90,818.88 × 37,134.47
4. Step 4: Simplify right side
   65,816.45x = 3,372,510,760.61
5. Step 5: Solve for x
   x = 3,372,510,760.61/65,816.45
6. Step 6: Final answer
   x = 51,241.15