Finding the Fourth Proportional to 65,905.38, 90,956.79 and 37,615.86

Step by Step Solution

1. Step 1: Write the proportion equation
   65,905.38 : 90,956.79 = 37,615.86 : x
2. Step 2: Convert to fraction form
   65,905.38/90,956.79 = 37,615.86/x
3. Step 3: Cross multiply
   65,905.38x = 90,956.79 × 37,615.86
4. Step 4: Simplify right side
   65,905.38x = 3,421,417,878.69
5. Step 5: Solve for x
   x = 3,421,417,878.69/65,905.38
6. Step 6: Final answer
   x = 51,914.09