Finding the Fourth Proportional to 65,618.05, 90,552.88 and 35,810.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,618.05 : 90,552.88 = 35,810.05 : x
2. Step 2: Convert to fraction form
   65,618.05/90,552.88 = 35,810.05/x
3. Step 3: Cross multiply
   65,618.05x = 90,552.88 × 35,810.05
4. Step 4: Simplify right side
   65,618.05x = 3,242,703,160.44
5. Step 5: Solve for x
   x = 3,242,703,160.44/65,618.05
6. Step 6: Final answer
   x = 49,417.85