Finding the Fourth Proportional to 35,221.59, 48,610.78 and 21,797.17

Step by Step Solution

1. Step 1: Write the proportion equation
   35,221.59 : 48,610.78 = 21,797.17 : x
2. Step 2: Convert to fraction form
   35,221.59/48,610.78 = 21,797.17/x
3. Step 3: Cross multiply
   35,221.59x = 48,610.78 × 21,797.17
4. Step 4: Simplify right side
   35,221.59x = 1,059,577,083.45
5. Step 5: Solve for x
   x = 1,059,577,083.45/35,221.59
6. Step 6: Final answer
   x = 30,083.17