Finding the Fourth Proportional to 35,958.50, 49,617.90 and 21,808.61

Step by Step Solution

1. Step 1: Write the proportion equation
   35,958.50 : 49,617.90 = 21,808.61 : x
2. Step 2: Convert to fraction form
   35,958.50/49,617.90 = 21,808.61/x
3. Step 3: Cross multiply
   35,958.50x = 49,617.90 × 21,808.61
4. Step 4: Simplify right side
   35,958.50x = 1,082,097,368.10
5. Step 5: Solve for x
   x = 1,082,097,368.10/35,958.50
6. Step 6: Final answer
   x = 30,092.95