Finding the Fourth Proportional to 65,293.16, 90,123.81 and 42,635.67

Step by Step Solution

1. Step 1: Write the proportion equation
   65,293.16 : 90,123.81 = 42,635.67 : x
2. Step 2: Convert to fraction form
   65,293.16/90,123.81 = 42,635.67/x
3. Step 3: Cross multiply
   65,293.16x = 90,123.81 × 42,635.67
4. Step 4: Simplify right side
   65,293.16x = 3,842,488,524.45
5. Step 5: Solve for x
   x = 3,842,488,524.45/65,293.16
6. Step 6: Final answer
   x = 58,849.79