Finding the Fourth Proportional to 65,978.95, 91,046.31 and 37,299.94

Step by Step Solution

1. Step 1: Write the proportion equation
   65,978.95 : 91,046.31 = 37,299.94 : x
2. Step 2: Convert to fraction form
   65,978.95/91,046.31 = 37,299.94/x
3. Step 3: Cross multiply
   65,978.95x = 91,046.31 × 37,299.94
4. Step 4: Simplify right side
   65,978.95x = 3,396,021,444.99
5. Step 5: Solve for x
   x = 3,396,021,444.99/65,978.95
6. Step 6: Final answer
   x = 51,471.29