Finding the Fourth Proportional to 65,700.84, 90,661.88 and 37,019.28

Step by Step Solution

1. Step 1: Write the proportion equation
   65,700.84 : 90,661.88 = 37,019.28 : x
2. Step 2: Convert to fraction form
   65,700.84/90,661.88 = 37,019.28/x
3. Step 3: Cross multiply
   65,700.84x = 90,661.88 × 37,019.28
4. Step 4: Simplify right side
   65,700.84x = 3,356,237,521.05
5. Step 5: Solve for x
   x = 3,356,237,521.05/65,700.84
6. Step 6: Final answer
   x = 51,083.63