Finding the Fourth Proportional to 65,321.37, 90,162.68 and 42,663.83

Step by Step Solution

1. Step 1: Write the proportion equation
   65,321.37 : 90,162.68 = 42,663.83 : x
2. Step 2: Convert to fraction form
   65,321.37/90,162.68 = 42,663.83/x
3. Step 3: Cross multiply
   65,321.37x = 90,162.68 × 42,663.83
4. Step 4: Simplify right side
   65,321.37x = 3,846,684,587.73
5. Step 5: Solve for x
   x = 3,846,684,587.73/65,321.37
6. Step 6: Final answer
   x = 58,888.61