Finding the Fourth Proportional to 65,947.73, 91,021.61 and 60,634.13

Step by Step Solution

1. Step 1: Write the proportion equation
   65,947.73 : 91,021.61 = 60,634.13 : x
2. Step 2: Convert to fraction form
   65,947.73/91,021.61 = 60,634.13/x
3. Step 3: Cross multiply
   65,947.73x = 91,021.61 × 60,634.13
4. Step 4: Simplify right side
   65,947.73x = 5,519,015,830.38
5. Step 5: Solve for x
   x = 5,519,015,830.38/65,947.73
6. Step 6: Final answer
   x = 83,687.73