Finding the Fourth Proportional to 66,673.37, 91,965.89 and 42,762.17

Step by Step Solution

1. Step 1: Write the proportion equation
   66,673.37 : 91,965.89 = 42,762.17 : x
2. Step 2: Convert to fraction form
   66,673.37/91,965.89 = 42,762.17/x
3. Step 3: Cross multiply
   66,673.37x = 91,965.89 × 42,762.17
4. Step 4: Simplify right side
   66,673.37x = 3,932,660,562.55
5. Step 5: Solve for x
   x = 3,932,660,562.55/66,673.37
6. Step 6: Final answer
   x = 58,983.98