Finding the Fourth Proportional to 65,803.21, 90,808.17 and 35,588.57

Step by Step Solution

1. Step 1: Write the proportion equation
   65,803.21 : 90,808.17 = 35,588.57 : x
2. Step 2: Convert to fraction form
   65,803.21/90,808.17 = 35,588.57/x
3. Step 3: Cross multiply
   65,803.21x = 90,808.17 × 35,588.57
4. Step 4: Simplify right side
   65,803.21x = 3,231,732,914.62
5. Step 5: Solve for x
   x = 3,231,732,914.62/65,803.21
6. Step 6: Final answer
   x = 49,112.09