Finding the Fourth Proportional to 65,955.81, 91,139.72 and 48,019.68

Step by Step Solution

1. Step 1: Write the proportion equation
   65,955.81 : 91,139.72 = 48,019.68 : x
2. Step 2: Convert to fraction form
   65,955.81/91,139.72 = 48,019.68/x
3. Step 3: Cross multiply
   65,955.81x = 91,139.72 × 48,019.68
4. Step 4: Simplify right side
   65,955.81x = 4,376,499,949.59
5. Step 5: Solve for x
   x = 4,376,499,949.59/65,955.81
6. Step 6: Final answer
   x = 66,355.03