Finding the Fourth Proportional to 65,910.65, 90,963.23 and 37,620.59

Step by Step Solution

1. Step 1: Write the proportion equation
   65,910.65 : 90,963.23 = 37,620.59 : x
2. Step 2: Convert to fraction form
   65,910.65/90,963.23 = 37,620.59/x
3. Step 3: Cross multiply
   65,910.65x = 90,963.23 × 37,620.59
4. Step 4: Simplify right side
   65,910.65x = 3,422,089,737.99
5. Step 5: Solve for x
   x = 3,422,089,737.99/65,910.65
6. Step 6: Final answer
   x = 51,920.14